Senior eye care writer
Tom Willis
Tom Willis is a deeply experienced eye care writer and editor with decades of work translating clinical vision science, ophthalmology research, and patient education into clear, practical guidance. His background spans comprehensive eye care, specialty referral pathways, diagnostic testing, treatment decision support, and health communication for patients, caregivers, and clinical teams.
Published work
176 articles linked here
Eye Care News
How to Interpret a Uveal Melanoma Blood Test
A circulating tumor DNA test for uveal melanoma monitoring is available in the United States as a laboratory-developed test from a CLIA-certified, CAP-accredited laboratory.
Updated Aug 1, 2026 / 6 min read
Eye Care News
A Clearer Family Framework for Myopia Control
A useful family guide should compare myopia-control options by evidence, regulatory status, age and prescription limits, daily burden, safety, cost, and follow-up instead of declaring one universal winner.
Updated Aug 1, 2026 / 7 min read
Eye Care News
What a New European Vitrectomy Cutter Means for Patients
The Bi-Blade dual-port vitrectomy cutter launched in Europe as a surgical instrument for vitreoretinal procedures.
Updated Aug 1, 2026 / 6 min read
Eye Care News
Where a Wireless Visual Cortex Implant Stands Today
A wireless intracortical visual prosthesis is in a small phase 1 feasibility study, not routine care.
Updated Aug 1, 2026 / 6 min read
Vision Therapy Screening
When Accommodative Dysfunction Needs Closer Follow-Up
Accommodative dysfunction needs closer follow-up when focus problems worsen, disrupt school or work, or follow concussion or neurological illness.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What AI Diabetic Eye Screening Changes in Primary Care
FDA-authorized autonomous AI systems can analyze retinal photographs for diabetic retinopathy in eligible patients at primary-care or diabetes visits.
Updated Aug 1, 2026 / 7 min read
Lasik Screening
How to Judge Whether You May Be a LASIK Candidate
A good LASIK candidate has stable vision, a suitable and regular cornea, manageable ocular surface health, no major healing contraindication, and expectations that match the procedure's limits.
Updated Aug 1, 2026 / 6 min read
Pediatric Amblyopia
Why Follow-Through Matters During Amblyopia Treatment
Amblyopia care depends on daily follow-through and measured progress. Learn what follow-up visits track and how families can report practical barriers without blame.
Updated Aug 1, 2026 / 6 min read
Dry Eye Diagnosis
How Aqueous-Deficient Dry Eye Is Tested and Managed
Aqueous-deficient dry eye occurs when the eye does not produce enough of the watery component of tears.
Updated Aug 1, 2026 / 6 min read
Contacts Screening
How to Tell Whether Contact Lenses Fit Your Eyes and Routine
Contact lenses are a good fit only when the lens design, prescription, cornea, tear film, handling ability, schedule, and hygiene routine work together.
Updated Aug 1, 2026 / 6 min read
Emergencies
When Eye Floaters Become an Emergency
Most longstanding floaters are not emergencies, but a sudden shower of new floaters, flashes, a dark curtain, or a new blurry area can indicate a retinal tear or detachment.
Updated Aug 1, 2026 / 6 min read
Eye Care News
How Parents Can Use Ask Kate for Childhood Myopia Questions
Ask Kate is a Myopia Profile educational assistant available to families through MyKidsVision. It can organize questions but cannot examine a child or choose treatment.
Updated Aug 1, 2026 / 6 min read
Special Needs Accessibility
Preparing an Autism-Friendly Eye Exam for Sensory Needs
An autism-friendly eye exam begins before the patient enters the room by identifying sensory triggers, communication preferences, successful rewards, and the most important clinical questions.
Updated Aug 1, 2026 / 6 min read
Cataract Diagnosis
Why Accurate Biometry Matters Before Cataract Surgery
Biometry is the set of eye measurements used to estimate the power of the artificial lens placed during cataract surgery.
Updated Aug 1, 2026 / 6 min read
General Triage
When Blurred Vision Needs Urgent Eye Care
Blurred vision needs urgent eye care when it starts suddenly, affects one eye or part of the field, follows injury, or occurs with pain, redness, flashes, floaters, double vision, severe headache, weakness, or speech trouble.
Updated Aug 1, 2026 / 6 min read
Primary Eye Care
Common Causes of Blurry Vision and When to Seek Care
Blurry vision can come from refractive error, dry eye, cataract, migraine, corneal disease, retina or optic nerve problems, medicines, or systemic illness.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What BrightMEM Corneal Allograft News Means for Patients
BrightMEM is a donor-derived Descemet membrane allograft for selected corneal procedures. Its product insert defines the tissue and its handling, not comparative outcomes.
Updated Aug 1, 2026 / 6 min read
Dry Eye Symptoms
Why Dry Eye Can Feel Burning Gritty or Watery
Dry eye can feel burning, gritty, watery, tired, or intermittently blurry because tear-film disturbance affects nerves, lubrication, and optical quality in different ways.
Updated Aug 1, 2026 / 6 min read
Contacts Dry Eye
Can You Wear Contact Lenses With Dry Eye
Some people with dry eye can wear contact lenses, but success depends on the cause and severity of dryness, lens material and design, wearing schedule, fit, and hygiene.
Updated Aug 1, 2026 / 7 min read
Cataract Diagnosis
How Doctors Separate Cataract Symptoms From Retina Problems
Doctors separate cataract from a retinal problem by matching the symptom pattern with dilation, lens examination, retinal examination, and imaging when needed.
Updated Aug 1, 2026 / 6 min read
Cataract Decision
When Cataract Surgery Timing Starts to Make Sense
Cataract surgery usually makes sense when cataract-related blur, glare, contrast loss, or prescription change interferes with valued daily activities and the expected benefit outweighs surgical risk.
Updated Aug 1, 2026 / 7 min read
Cataract Symptoms
When Cloudy Vision in One Eye May Be a Cataract
Cloudy vision in one eye can be caused by cataract, but the same description can reflect corneal, retinal, optic nerve, inflammatory, or pressure-related disease.
Updated Aug 1, 2026 / 7 min read
Optical Lens Options
Computer Glasses and Reading Glasses Solve Different Tasks
Computer glasses and reading glasses are not interchangeable because they are focused for different working distances.
Updated Aug 1, 2026 / 7 min read
Contacts Screening
Contact Lens Mistakes That Raise Infection Risk
The contact lens habits most associated with avoidable infection risk include sleeping in lenses outside a prescribed plan, exposing lenses or cases to water, topping off old solution, skipping rubbing and rinsing when directed.
Updated Aug 1, 2026 / 6 min read
Sports Vision Contacts
Contact Lenses for Athletes With a Safer Backup Plan
Athletes can use contact lenses safely when the lenses fit well, water stays away from them, hands and cases stay clean, and backup glasses are immediately available.
Updated Aug 1, 2026 / 7 min read
Low Vision Diagnosis
When Contrast Sensitivity Problems Need an Eye Evaluation
Contrast sensitivity problems make objects blend into backgrounds even when standard letter acuity remains fairly good.
Updated Aug 1, 2026 / 6 min read
Low Vision Daily Living
Why Bigger Print May Not Fix Poor Contrast Sensitivity
Bigger print may not solve poor contrast sensitivity because size and contrast are different visual demands.
Updated Aug 1, 2026 / 7 min read
Vision Therapy Screening
Why Convergence Insufficiency Can Be Easy to Miss
Convergence insufficiency can be missed because it mainly affects how the eyes work together at near, while each eye may see clearly on a distance chart.
Updated Aug 1, 2026 / 6 min read
Vision Therapy Binocular Vision
Why Convergence Insufficiency Can Make Reading Exhausting
Convergence insufficiency can make reading exhausting because the eyes struggle to maintain comfortable inward alignment at near.
Updated Aug 1, 2026 / 6 min read
Cornea Diagnosis
How Doctors Separate a Corneal Abrasion From Infection
A corneal abrasion and an infection can both cause pain, tearing, redness, light sensitivity, and blur, so symptoms alone may not separate them.
Updated Aug 1, 2026 / 6 min read
Cornea Keratoconus
What Corneal Cross-Linking Is Meant to Prevent
Corneal cross-linking is intended to slow or stop progressive keratoconus by strengthening corneal collagen.
Updated Aug 1, 2026 / 7 min read
Lasik Screening
Why Corneal Thickness Matters Before LASIK
Corneal thickness matters before LASIK because the procedure creates a flap and reshapes stromal tissue beneath it.
Updated Aug 1, 2026 / 7 min read
Cornea Diagnosis
What Corneal Tomography Shows Before Eye Surgery
Corneal tomography creates a three-dimensional assessment of the clear front window of the eye.
Updated Aug 1, 2026 / 6 min read
Cornea Diagnosis
When Corneal Topography Results Need Specialist Review
Corneal topography results need specialist review when maps are suspicious, inconsistent, progressive, or important to refractive or cataract surgery planning.
Updated Aug 1, 2026 / 6 min read
Special Needs Diagnosis
Signs of Cortical Visual Impairment Beyond the Eye
Cortical visual impairment can be suspected when visual behavior is inconsistent or difficult to explain by the eye examination alone.
Updated Aug 1, 2026 / 6 min read
Pediatric Strabismus
When Crossed Eyes in Babies Need an Exam
A baby's eyes can occasionally look crossed during the first few months, and a wide nasal bridge can create a false crossed-eye appearance.
Updated Aug 1, 2026 / 8 min read
Special Needs Diagnosis
How Specialists Separate CVI From Eye Disease
Specialists distinguish cerebral visual impairment from eye disease by combining history, eye findings, functional observation, and visual behavior.
Updated Aug 1, 2026 / 6 min read
Optical Diagnosis
Why Cylinder and Axis Changes Can Make Glasses Feel Wrong
A cylinder or axis change can make new glasses feel tilted, stretched, blurry, or spatially unfamiliar, especially when the change is large or differs between eyes.
Updated Aug 1, 2026 / 6 min read
Sports Vision Diagnosis
When Depth Perception Problems Need an Eye Exam
Depth perception problems can arise when the eyes do not provide similar, well-aligned images or when the brain cannot combine them efficiently.
Updated Aug 1, 2026 / 6 min read
Retina Diabetes
Why Diabetic Eye Disease Can Advance Before Vision Changes
Diabetic eye disease can progress while central vision remains normal because early retinal damage may not involve the area used for sharp sight.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What New Diet Research Can and Cannot Say About AMD
Diet research may identify patterns associated with age-related macular degeneration, but association does not prove that one food prevents or reverses disease.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What DOT Lens Studies Mean for Myopia Control
Randomized trials suggest DOT spectacle lenses can slow myopia progression in studied children, but FDA Breakthrough Device designation is not marketing authorization or approval.
Updated Aug 1, 2026 / 6 min read
Neuro Urgent Care
Why Sudden Double Vision Needs Prompt Evaluation
Sudden double vision needs prompt evaluation because it may reflect a new eye-movement nerve problem, orbital disease, muscle disorder, or neurologic emergency.
Updated Aug 1, 2026 / 6 min read
Oculoplastics Ptosis
When Droopy Eyelids Block Vision
A droopy eyelid becomes a functional vision problem when it blocks the pupil, reduces the upper visual field, forces a chin-up posture, interferes with reading or driving, or threatens visual development in a child.
Updated Aug 1, 2026 / 6 min read
Oculoplastics Diagnosis
When Droopy Eyelids Are Functional or Cosmetic
Droopy eyelids can involve true ptosis, excess eyelid skin, brow descent, swelling, or a combination.
Updated Aug 1, 2026 / 6 min read
Contacts Screening
Why Dry Eye Screening Helps Before Contact Lenses
Dry eye screening before contact lens fitting checks whether the tear film and eyelids can support comfortable, stable wear.
Updated Aug 1, 2026 / 7 min read
Lasik Screening
Why Dry Eye Should Be Treated Before LASIK
Dry eye should be identified and stabilized before LASIK because an unhealthy tear film can make measurements less reliable and symptoms worse after surgery.
Updated Aug 1, 2026 / 7 min read
Dry Eye Symptoms
Why Dry Eye Can Feel Worse at Night
Dry eye may feel worse at night because blinking stops during sleep, the eyelids may not close completely, or the tear film and oil glands provide poor overnight protection.
Updated Aug 1, 2026 / 6 min read
Retina Diagnosis
Tests That Help Detect Dry to Wet AMD Conversion
The most important test for suspected conversion from dry to wet age-related macular degeneration is often structural optical coherence tomography, or OCT, interpreted with symptoms and a dilated retinal examination.
Updated Aug 1, 2026 / 6 min read
Sports Vision Diagnosis
What Dynamic Visual Acuity Testing Measures
Dynamic visual acuity testing measures how well a person identifies visual detail while the head, the target, or both are moving.
Updated Aug 1, 2026 / 7 min read
Cornea Diagnosis
Early Keratoconus Signs Eye Doctors Evaluate
Early keratoconus is usually detected from a pattern of changing or irregular astigmatism, reduced best-corrected vision, and corneal shape or thickness abnormalities.
Updated Aug 1, 2026 / 6 min read
Lasik Screening
Why Ectasia Risk Screening Matters Before LASIK
Ectasia risk screening before LASIK looks for a cornea that may be vulnerable to progressive thinning and distortion after tissue is reshaped.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What Elegrobart Results Mean for Thyroid Eye Disease
Elegrobart remains an investigational subcutaneous therapy, and positive company-reported phase 3 results do not make it FDA-approved or routinely available.
Updated Aug 1, 2026 / 6 min read
Dry Eye Diagnosis
How Doctors Recognize Evaporative Dry Eye
Evaporative dry eye is suspected when tears lose stability too quickly, often because the eyelid oil glands are not supporting the outer tear layer well.
Updated Aug 1, 2026 / 6 min read
Special Needs Diagnosis
How Eye Exams Are Adapted for Nonverbal Patients
An eye exam does not require spoken letter naming. Clinicians can estimate prescription with retinoscopy, assess visual behavior with fixation or preferential-looking methods, accept matching or gesture responses, and examine eye.
Updated Aug 1, 2026 / 6 min read
Special Needs Accessibility
How Eye Exams Adapt for Nonverbal Patients
A nonverbal patient can still receive a meaningful eye examination through objective refraction, observation, preferential-looking or matching tasks, pupil and alignment tests, and portable eye-health tools.
Updated Aug 1, 2026 / 6 min read
Cornea Symptoms
When Eye Pain Light Sensitivity and Redness Point to the Cornea
Eye pain, light sensitivity, redness, and blurred vision can indicate corneal injury or inflammation and deserve prompt assessment, particularly in a contact lens wearer.
Updated Aug 1, 2026 / 6 min read
General Urgent Care
Eye Pain With Headache That Needs Same-Day Care
Eye pain with headache needs same-day or emergency assessment when it comes with sudden vision change, a red eye, halos, nausea or vomiting, marked light sensitivity, a new pupil difference, weakness, confusion, or speech trouble.
Updated Aug 1, 2026 / 7 min read
Glaucoma Diagnosis
Can Glaucoma Develop With Normal Eye Pressure?
Glaucoma can develop despite normal-range office pressure readings. Learn why optic-nerve findings, OCT, visual fields, corneal thickness, and change over time still matter.
Updated Aug 1, 2026 / 6 min read
Vision Therapy Concussion
Why Concussion Can Disrupt Eye Teaming
Concussion can disrupt convergence, accommodation, eye movements, and visual tolerance, making reading, screens, busy environments, and motion difficult.
Updated Aug 1, 2026 / 7 min read
Oculoplastics Eyelid Lesions
Eyelid Lesion Changes That Should Be Examined
Most eyelid bumps are benign, but growth, bleeding, repeated crusting, lash loss, lid-edge distortion, or recurrence in one spot should prompt an examination.
Updated Aug 1, 2026 / 6 min read
General Triage
When Flashes of Light Need Same-Day Eye Care
New flashes of light in one eye need same-day eye assessment when they occur with new floaters, a curtain or shadow, missing side vision, or reduced vision.
Updated Aug 1, 2026 / 7 min read
Low Vision Diagnosis
What Functional Vision Assessment Shows Beyond the Eye Chart
A functional vision assessment measures how a person uses vision during real tasks, not just the smallest letters read on a bright chart.
Updated Aug 1, 2026 / 6 min read
Glaucoma Diagnosis
What Ganglion Cell Complex Changes on OCT May Mean
Ganglion cell complex changes on OCT can add evidence about glaucoma or optic nerve injury, but a colored map is not a diagnosis.
Updated Aug 1, 2026 / 6 min read
Cataract Diagnosis
Why Glare Testing Matters Before Cataract Surgery
Glare testing can document a cataract-related loss of visual function that a high-contrast eye chart may miss.
Updated Aug 1, 2026 / 6 min read
Glaucoma Screening
Who Needs Regular Glaucoma Evaluation Without Symptoms
Glaucoma can damage peripheral vision before a person notices symptoms, so risk-based comprehensive eye evaluation matters.
Updated Aug 1, 2026 / 6 min read
Specialty Contacts
How Specialty Contact Lens Fitting Works
Specialty contact lens fitting is a measured trial-and-review process, not a one-visit product choice.
Updated Aug 1, 2026 / 6 min read
Refractive Surgery
How to Compare LASIK and PRK
LASIK and PRK reshape the cornea with an excimer laser, but LASIK creates a flap while PRK removes surface epithelium that must regrow.
Updated Aug 1, 2026 / 6 min read
Special Needs Accessibility
Preparing a Child With Developmental Delay for an Eye Exam
A child with developmental delay does not need to read letters or give spoken answers for an eye doctor to learn useful information.
Updated Aug 1, 2026 / 8 min read
Pediatric Screening
Infant Vision Warning Signs Parents Should Know
Infants cannot describe blur or double vision, so parents and clinicians rely on alignment, pupil appearance, visual attention, tracking, eyelid position, tearing, redness, and developmental behavior.
Updated Aug 1, 2026 / 6 min read
Cornea Diagnosis
Why Infectious and Sterile Keratitis Need Different Care
Infectious and sterile keratitis can both cause a painful red eye and a corneal infiltrate, but infection can progress rapidly and threaten vision.
Updated Aug 1, 2026 / 6 min read
Neuro Diagnosis
Symptoms and Examination Clues in Ischemic Optic Neuropathy
Ischemic optic neuropathy usually causes sudden vision loss from impaired blood flow to the optic nerve, often without the movement-related pain typical of optic neuritis.
Updated Aug 1, 2026 / 6 min read
Lasik Screening
LASIK Candidacy Questions More Important Than Age
LASIK candidacy depends more on stable refraction, corneal shape and thickness, ocular surface health, pupil-related symptoms, healing risks, and realistic goals than on age alone.
Updated Aug 1, 2026 / 6 min read
Lasik Decision
Why the Safer Choice Between LASIK and PRK Depends on the Cornea
LASIK and PRK both use an excimer laser to reshape corneal tissue, but LASIK creates a flap while PRK removes the surface epithelium and lets it regrow.
Updated Aug 1, 2026 / 6 min read
Low Vision Basics
Why Low Vision Is Not the Same as Needing Stronger Glasses
Low vision is visual impairment that makes everyday activities difficult and is not fully corrected by ordinary glasses, contact lenses, medicine, or surgery.
Updated Aug 1, 2026 / 6 min read
Low Vision Diagnosis
What Low Vision and Blindness Mean for Daily Life
Low vision describes lasting visual impairment that interferes with daily activities despite ordinary correction or treatment.
Updated Aug 1, 2026 / 6 min read
Pediatric Screening
What Makes School-Age Vision Complaints Easy to Miss
School-age vision complaints are easy to miss when a child passes a brief distance screen, uses one eye to compensate for the other, develops symptoms only after sustained work, or cannot describe blur and double vision clearly.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What MCO-010 Data Can and Cannot Tell People With Retinitis Pigmentosa
MCO-010 is an investigational optogenetic therapy studied in adults with severe vision loss from retinitis pigmentosa. Trial reports do not make it routine care.
Updated Aug 1, 2026 / 6 min read
Dry Eye Diagnosis
What Meibography Shows About Eyelid Oil Glands
Meibography uses infrared imaging to show the shape and distribution of meibomian glands inside the eyelids.
Updated Aug 1, 2026 / 6 min read
Dry Eye Causes
How Meibomian Gland Dysfunction Speeds Tear Evaporation
Meibomian gland dysfunction can make tears evaporate too quickly because the eyelid oil glands are not supplying a stable outer tear layer.
Updated Aug 1, 2026 / 8 min read
Eye Care News
What the MiSight Switch Guarantee Does and Does Not Mean
The MiSight Switch Program is a commercial program, not a new clinical endpoint or proof that one child will respond better.
Updated Aug 1, 2026 / 7 min read
Eye Care News
How to Read the New MiYOSMART iQ Data
Early MiYOSMART iQ reports add to research on spectacle-based myopia control, but the findings came from non-U.S.
Updated Aug 1, 2026 / 6 min read
Retina Urgent Care
When New Floaters and Flashes Need Same-Day Retinal Care
New floaters and flashes in the same eye should be assessed the same day because the combination can occur when the vitreous pulls on the retina and causes a tear.
Updated Aug 1, 2026 / 6 min read
Optical Troubleshooting
What to Recheck When New Glasses Feel Wrong
When new glasses feel wrong, first check whether the frame is level, stable, and positioned as measured.
Updated Aug 1, 2026 / 7 min read
Eye Care News
What the New Progressive Lens Study Really Shows
A company-commissioned prospective study followed 30 established progressive-lens wearers aged 40 or older at six U.S.
Updated Aug 1, 2026 / 6 min read
Cataract Symptoms
Could Cataracts Be Making Night Driving Harder
Cataracts can make night driving harder by scattering incoming light, reducing contrast, and creating glare or halos around headlights.
Updated Aug 1, 2026 / 6 min read
Retina Diagnosis
What OCT Angiography Shows in Retina Care
OCT angiography maps motion from blood cells to show retinal and choroidal vessel patterns without injected dye.
Updated Aug 1, 2026 / 6 min read
Glaucoma Diagnosis
What OCT Change Over Time Can Mean in Glaucoma
OCT progression in glaucoma means repeated scans suggest retinal nerve fiber layer or macular ganglion cell tissue is thinning beyond expected measurement variability and normal aging.
Updated Aug 1, 2026 / 6 min read
Retina Diagnosis
What Retinal OCT Biomarkers Can Show
Retinal OCT biomarkers are imaging features that help clinicians diagnose disease, estimate risk, monitor activity, or discuss prognosis.
Updated Aug 1, 2026 / 6 min read
Neuro Optic Nerve
When Eye Pain and Vision Loss Suggest Optic Neuritis
Eye pain that worsens with movement together with new vision loss can fit optic neuritis, but the same combination can also signal other urgent eye or neurologic problems.
Updated Aug 1, 2026 / 6 min read
Neuro Diagnosis
How Optic Neuritis Is Tested and When Care Cannot Wait
Optic neuritis testing combines the symptom timeline with color vision, pupils, visual fields, the optic nerve examination, and often MRI.
Updated Aug 1, 2026 / 6 min read
Optical Diagnosis
Why Optical Centering Matters in Glasses
Optical centering means positioning each lens so its intended viewing areas align with the wearer's pupils and the way the frame sits.
Updated Aug 1, 2026 / 7 min read
Oculoplastics Diagnosis
Orbital Mass Warning Signs Around the Eye
A new change in eye position, progressive bulging, double vision, restricted movement, numbness, pain, or declining vision can signal a problem inside the orbit.
Updated Aug 1, 2026 / 6 min read
Neuro Diagnosis
Why Papilledema Needs Prompt Medical Review
Papilledema means optic disc swelling caused by raised pressure around the brain and it needs prompt medical review.
Updated Aug 1, 2026 / 6 min read
Children's Vision
A Parent Checklist for Signs a Child May Need Glasses
Squinting, sitting close, closing one eye, tilting the head, rubbing, headaches with near work, losing place, school avoidance, or an eye that turns can justify an eye exam.
Updated Aug 1, 2026 / 7 min read
Contacts Screening
Why Children Wearing Contacts Need Closer Follow-Up
Children can wear contact lenses successfully when they can follow hygiene, replacement, and symptom rules consistently.
Updated Aug 1, 2026 / 6 min read
Pediatric Screening
Why Premature Infants Need Ongoing Eye Follow-Up
Premature infants need the eye follow-up specified by their neonatal and ophthalmology teams even when they appear to see normally.
Updated Aug 1, 2026 / 6 min read
Pediatric Screening
When Preschool Children Should Have Vision Screening
Children should have age-appropriate vision checks throughout early childhood, including screening for amblyopia and its risk factors during the preschool years.
Updated Aug 1, 2026 / 7 min read
Optical Progressives
Why Progressive Lens Adaptation Takes Time
Progressive lenses blend distance, intermediate, and near power across one lens without a visible segment line.
Updated Aug 1, 2026 / 6 min read
Sports Vision Protection
How to Choose Protective Eyewear by Sport
Protective eyewear should be selected for the specific sport, position, impact hazard, and athlete.
Updated Aug 1, 2026 / 6 min read
Neuro Diagnosis
How Doctors Test for Pseudopapilledema
Pseudopapilledema means an optic nerve head looks elevated even though it is not swollen from raised pressure around the brain.
Updated Aug 1, 2026 / 6 min read
Oculoplastics Diagnosis
How Doctors Distinguish Ptosis From Aging Eyelid Skin
Ptosis is drooping of the upper eyelid margin itself. Dermatochalasis is redundant upper-eyelid skin that can hang over the lid crease and sometimes the lashes. They can occur separately or together, so doctors inspect the lid.
Updated Aug 1, 2026 / 6 min read
Optical Diagnosis
How Pupillary Distance Problems Affect Glasses
Pupillary distance, or PD, helps place the intended optical area of each lens in front of the eyes.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What FDA-Approved Ray-Tracing LASIK Changes
FDA-approved WaveLight Plus uses patient-specific ray-tracing measurements to plan LASIK, but it does not make every eye a candidate or remove surgical risk.
Updated Aug 1, 2026 / 6 min read
Sports Vision Diagnosis
What Sports Reaction-Time Testing Can and Cannot Show
Sports reaction-time testing measures a response under a particular visual and motor setup, not athletic talent or game performance by itself.
Updated Aug 1, 2026 / 6 min read
Low Vision Diagnosis
How Reading Ability Is Tested in Low Vision Care
Reading assessment in low vision care measures how small, how fast, how accurately, and how comfortably a person reads.
Updated Aug 1, 2026 / 6 min read
Low Vision Rehabilitation
Reading With Macular Degeneration Using Tools That Match the Task
Reading with macular degeneration may become easier when magnification, lighting, contrast, working distance, audio tools, and low-vision training are matched to the task.
Updated Aug 1, 2026 / 6 min read
Contacts Safety
When a Red Eye With Contacts Needs Care
Take the contact lens out when an eye becomes unusually red, painful, irritated, light-sensitive, or blurry.
Updated Aug 1, 2026 / 7 min read
General Triage
Red Flags That Make a Painful Red Eye Urgent
A painful red eye is urgent when vision is reduced, light causes marked pain, the cornea looks cloudy or has a white spot, the pupil is newly abnormal, the eye was injured or chemically exposed, or eye movement is limited.
Updated Aug 1, 2026 / 7 min read
Retina Urgent Care
Retinal Detachment Warning Signs in Plain English
A sudden burst of floaters, repeated flashes, a dark curtain or shadow, or a new missing area of vision can signal a retinal tear or detachment.
Updated Aug 1, 2026 / 7 min read
Glaucoma Diagnosis
What RNFL Thinning Without Field Loss May Mean
RNFL thinning without visual field loss may represent early structural change, normal anatomy, myopia-related measurement differences, segmentation error, or another optic nerve process.
Updated Aug 1, 2026 / 6 min read
Routine Eye Care
Routine Eye Exam Timing by Age and Risk
There is no single routine eye-exam interval that fits everyone. Age, symptoms, glasses or contact lens use, diabetes, family history, high myopia, medicines, prior findings, and clinician guidance determine timing, while sudden.
Updated Aug 1, 2026 / 6 min read
Eye Care News
What a Short Steroid Study Really Says About Eye Pressure
A 2026 pooled analysis found no short-term pressure rise with the specific skin or oral steroid regimens studied. The result does not establish safety for steroid eye drops.
Updated Aug 1, 2026 / 6 min read
Pediatric Screening
Signs a Child May Not Be Seeing Well at School
A child may need an eye examination if they repeatedly squint, sit unusually close, close or cover one eye, tilt the head, lose place while reading, complain of blur or double vision, develop headaches with visual tasks, or avoid.
Updated Aug 1, 2026 / 6 min read
Contacts Safety
Why Sleeping in Contact Lenses Raises the Risk
Sleeping in contact lenses increases the risk of microbial keratitis, a serious corneal infection.
Updated Aug 1, 2026 / 6 min read
Sports Vision Injury
When a Sports Eye Injury Means Stop Playing
Stop play immediately after an eye impact if the athlete has reduced or distorted vision, double vision, significant pain, light sensitivity, bleeding, a misshapen pupil, flashes or floaters, or difficulty moving the eye.
Updated Aug 1, 2026 / 6 min read
Sports Vision Diagnosis
What Athletes Can Learn From Sports Vision Testing
Sports vision testing can show whether an athlete's prescription, eye health, contrast sensitivity, binocular alignment, depth judgment, motion vision, and visual response are adequate under defined conditions.
Updated Aug 1, 2026 / 6 min read
Lasik Screening
What a Stable Prescription Means Before LASIK
A stable prescription before LASIK means repeated refractions show no clinically important change over the period required by the surgeon and the specific laser labeling.
Updated Aug 1, 2026 / 6 min read
Retina Diagnosis
Why Subclinical CNV Needs Close Monitoring
Subclinical CNV, now often called nonexudative macular neovascularization, means OCT angiography shows an abnormal vascular network without the fluid, bleeding, or other exudation used to define active wet AMD.
Updated Aug 1, 2026 / 6 min read
General Triage
How Eye Doctors Decide the Urgency of Sudden Floaters
Eye doctors triage sudden floaters by asking when they began, whether there was a shower or rapid increase, which eye is affected, and whether flashes, a curtain, field loss, haze, or reduced vision are present.
Updated Aug 1, 2026 / 7 min read
General Urgent Care
Sudden Vision Changes That Should Not Wait
Sudden partial or complete vision loss in one or both eyes is an emergency, even if sight returns.
Updated Aug 1, 2026 / 6 min read
Dry Eye Diagnosis
What Tear Osmolarity Testing Can Show
Tear osmolarity testing measures the concentration of dissolved particles in a small tear sample.
Updated Aug 1, 2026 / 7 min read
Oculoplastics Diagnosis
Tests That Help Explain Watery Eyes
Watery eyes can come from too much reflex tearing, poor tear drainage, eyelid position, or more than one cause at the same time.
Updated Aug 1, 2026 / 6 min read
Oculoplastics Thyroid Eye
Early Thyroid Eye Disease Signs Around the Eyes
Thyroid eye disease can begin with dryness, grittiness, eyelid retraction, swelling, redness, pressure, light sensitivity, double vision, or a change in how far an eye protrudes.
Updated Aug 1, 2026 / 8 min read
Macular Degeneration
Understanding Wet and Dry Macular Degeneration
Dry age-related macular degeneration usually progresses through deposits and retinal tissue changes, while wet AMD involves abnormal blood vessels that can leak or bleed.
Updated Aug 1, 2026 / 7 min read
Eye Care News
What the Vamikibart Trials Actually Showed
Vamikibart remains investigational. In phase 3 uveitic macular edema research, MEERKAT met its primary endpoint while SANDCAT did not, so the program cannot be summarized as two uniformly positive trials. The findings support.
Updated Aug 1, 2026 / 7 min read
Special Needs Diagnosis
How Eye Exams Can Be Adapted for Autism
An eye exam for an autistic child or adult can be adapted by changing communication, pacing, sensory conditions, response methods, and test order.
Updated Aug 1, 2026 / 6 min read
Vision Therapy Decision
Vision Therapy and Tutoring Solve Different Problems
Vision therapy and tutoring are not competing versions of the same treatment. Vision therapy is used for selected, measured visual conditions such as convergence insufficiency. Tutoring or structured literacy instruction teaches.
Updated Aug 1, 2026 / 6 min read
Eye Care News
How to Judge Vision-Training Software Claims
Vision-training software is not one treatment category. A prescription digital therapy may have a specific FDA-cleared indication and age range, while another program may be investigational or a general wellness product. Patients.
Updated Aug 1, 2026 / 7 min read
Neuro Symptoms
Visual Aura and Retinal Warning Signs Feel Different
Migraine aura often creates spreading or shimmering patterns seen through both eyes, while a retinal tear or detachment more often causes sudden flashes, floaters, or a curtain in one eye.
Updated Aug 1, 2026 / 7 min read
Glaucoma Diagnosis
Why Glaucoma Visual Field Tests Need Repeating
A visual field test may need repeating because it is a performance test, not a photograph.
Updated Aug 1, 2026 / 7 min read
Glaucoma Testing
What an OCT Scan Shows in Glaucoma Care
OCT measures the thickness and structure of retinal nerve tissue that glaucoma can damage, but it does not diagnose glaucoma by itself.
Updated Aug 1, 2026 / 8 min read
Dry Eye
What Dry Eye Symptoms Feel Like and What May Help
Dry eye can feel gritty, burning, watery, tired, light-sensitive, or intermittently blurry because tear-film problems affect lubrication, nerves, and optical quality.
Updated Aug 1, 2026 / 6 min read
General Eye Exam
What Happens During a Dilated Eye Exam
During a dilated eye exam, drops widen the pupils so the clinician can examine more of the retina, optic nerve, blood vessels, and other internal structures.
Updated Aug 1, 2026 / 6 min read
Routine Eye Care
What Helps Screen Eye Strain and What Does Not
Screen eye strain often improves when the prescription is accurate, blinking and tear care are addressed, viewing distance and lighting are comfortable, and near work includes regular changes of focus.
Updated Aug 1, 2026 / 6 min read
Eye Care News
How Dry Eye Patients Should Check Eye-Drop Recalls
Eye-drop recall status can change, so patients should check the exact product, manufacturer, lot, and current FDA recall notice rather than rely on an old list.
Updated Aug 1, 2026 / 7 min read
Emergencies
What to Do First After Chemical Eye Exposure
Start immediate, continuous flushing with clean lukewarm water or saline after a chemical reaches the eye.
Updated Aug 1, 2026 / 6 min read
Diabetic Eye Care
What to Expect From a Diabetic Eye Exam
A diabetic eye exam checks vision, eye pressure, the retina, blood vessels, macula, and optic nerve, usually with dilation or validated retinal imaging plus referral pathways.
Updated Aug 1, 2026 / 7 min read
Primary Eye Care
What a Comprehensive Eye Exam Checks
A comprehensive eye exam evaluates more than a glasses prescription. It can include history, acuity, refraction, pupils, alignment and movements, peripheral vision, eye pressure, the front of the eye, and the retina and optic.
Updated Aug 1, 2026 / 6 min read
Optical Diagnosis
When a Complex Glasses Prescription Needs Closer Review
A complex glasses prescription deserves closer review when high power, astigmatism, prism, unequal eyes, progressive lenses, or large changes make small fitting errors more noticeable.
Updated Aug 1, 2026 / 6 min read
Cataract
When Cloudy Vision May Be a Cataract Symptom
A gradual, painless haze with glare, faded color, frequent prescription changes, or trouble at night can fit cataract, but cloudy vision is not specific to the lens.
Updated Aug 1, 2026 / 6 min read
Emergencies
When Eye Floaters Need Same-Day Care
Seek same-day eye care for a sudden increase or shower of floaters, especially when it comes with flashes of light, a curtain or shadow, missing side vision, or reduced vision.
Updated Aug 1, 2026 / 7 min read
Cataract Diagnosis
When the Eye Chart Does Not Explain Vision Trouble
A normal or nearly normal eye-chart result does not exclude problems with contrast, glare, visual field, binocular coordination, reading, retina, optic nerve, or brain-based visual processing.
Updated Aug 1, 2026 / 6 min read
Vision Therapy Screening
When to Check for Binocular Vision Dysfunction
Binocular vision testing is appropriate when a person has persistent or recurrent double vision, eyestrain, headaches linked to visual tasks, loss of place, blur that changes with near work, or difficulty coordinating the eyes.
Updated Aug 1, 2026 / 7 min read
Vision Therapy Screening
Who May Benefit From a Vision Therapy Evaluation
A vision therapy evaluation is most useful when symptoms and examination findings suggest a defined binocular, accommodative, or eye-movement disorder with measurable functional goals.
Updated Aug 1, 2026 / 6 min read
Specialty Contacts
Who Scleral Contact Lenses Help and What to Expect
Scleral lenses can help selected people with irregular corneas, keratoconus, severe ocular-surface disease, or poor vision and comfort in other lenses.
Updated Aug 1, 2026 / 6 min read
Diabetic Eye Care
Why Diabetic Retinopathy Can Be Easy to Miss
Diabetic retinopathy can be easy to miss because early retinal damage may cause no noticeable symptoms and central vision can remain clear.
Updated Aug 1, 2026 / 6 min read
Glaucoma
Why Eye Pressure Is Only Part of Glaucoma Care
Eye pressure is an important glaucoma risk factor and treatment target, but it is only one part of the story.
Updated Aug 1, 2026 / 7 min read
Eye Care News
What Wireless Pressure Goggles Could Change in Glaucoma
FDA-cleared FSYX Ocular Pressure Adjusting Pump goggles are a prescription system that temporarily lowers intraocular pressure during wear in adults with open-angle glaucoma.
Updated Aug 1, 2026 / 6 min read
Cataract
Glasses After Cataract Surgery and What Determines the Need
Cataract surgery can reduce dependence on glasses, but lens choice, target focus, astigmatism, healing, and the health of both eyes determine the result.
Updated Jul 29, 2026 / 6 min read
Glaucoma
How Likely Is Vision Loss From Glaucoma?
Glaucoma can cause irreversible blindness, but risk varies widely. Early detection, lower eye pressure, reliable testing, and treatment adherence change the outlook.
Updated Jul 29, 2026 / 6 min read
Uveitis
How Uveitis Can Change the Shape of the Pupil
Inflammation from anterior uveitis can make the iris adhere to nearby tissue. Learn what posterior synechiae mean and why prompt treatment matters.
Updated Jul 29, 2026 / 6 min read
Neuro Ophthalmology
Why Eyes Shake and When Nystagmus Needs Evaluation
Rhythmic eye movement is often nystagmus, but its timing and associated symptoms determine whether it is longstanding or a new neurologic warning.
Updated Jul 29, 2026 / 6 min read
Eyelids
One Swollen Eyelid and the Clues That Point to the Cause
A swollen eyelid may come from a blocked gland, allergy, irritation, or infection. Pain, fever, reduced vision, and painful eye movement change the urgency.
Updated Jul 29, 2026 / 6 min read
Specialty Contacts
Why Air Bubbles Get Trapped Under Scleral Lenses
Air under a scleral lens usually points to an insertion gap, too little filling liquid, or a fit issue. Learn how the bubble pattern helps identify the cause.
Updated Jul 29, 2026 / 6 min read
Specialty Contacts
Which Eye Drops Work With Scleral Lenses?
Learn which lubricating and medicated eye drops may be used around scleral lens wear, what should never go in the lens bowl, and when to remove the lens.
Updated Jul 29, 2026 / 6 min read
Emergencies
Swollen Eye Warning Signs That Need Urgent Care
Swelling becomes an emergency when it affects vision, eye movement, breathing, or the tissues behind the eyelid. Use this triage guide without delaying care.
Updated Jul 29, 2026 / 6 min read
Specialty Contacts
Scleral Lens Compression Rings and What They Reveal About Fit
A temporary ring can reflect normal lens landing, but deep grooves, whitening, pain, or prolonged redness can signal excessive tissue compression.
Updated Jul 29, 2026 / 6 min read
Retina
What a Weiss Ring Floater Means for the Vitreous and Retina
A ring-shaped floater often forms when the vitreous separates from the optic nerve. It suggests posterior vitreous detachment but does not rule out a retinal tear.
Updated Jul 29, 2026 / 6 min read
Diabetic Eye Care
Semaglutide and Eye Health Based on Current Evidence
Semaglutide raises two distinct eye questions involving diabetic retinopathy and NAION. Learn what regulators and studies show and where uncertainty remains.
Updated Jul 29, 2026 / 6 min read
Neuro Ophthalmology
What Vision Recovery Can Look Like After Brain Surgery
Vision after brain surgery depends on the operation site, swelling, and the visual pathway affected. Learn what can improve and what needs urgent reassessment.
Updated Jul 29, 2026 / 6 min read
Children's Vision
Unequal Prescriptions in Children and Amblyopia Risk
When one eye sends a blurrier image during visual development, the brain may favor the clearer eye. Early glasses and follow-up can protect visual potential.
Updated Jul 29, 2026 / 6 min read
Vision Therapy
Tropia and Phoria Explained Without the Jargon
A tropia is a manifest eye turn, while a phoria is a hidden alignment tendency controlled by fusion. Learn how cover testing reveals the difference.
Updated Jul 29, 2026 / 6 min read
Vision Therapy
Trigeminal Dysphoria and the Evidence Behind the Label
Trigeminal dysphoria is a commercial term linked to eyestrain and headache. Learn what is established, what remains uncertain, and how to evaluate treatment claims.
Updated Jul 29, 2026 / 6 min read
Neuro Ophthalmology
Oculomotor Dysfunction and Unstable Reading Vision
Reading requires accurate fixations, saccades, tracking, and binocular control. Learn how clinicians separate an eye movement problem from other reading barriers.
Updated Jul 29, 2026 / 6 min read
Children's Vision
Light Sensitivity in Children and When It Needs an Eye Exam
Children may avoid light because of migraine, allergy, surface irritation, inflammation, or an uncommon congenital condition. Pain and vision change raise urgency.
Updated Jul 29, 2026 / 6 min read
Specialty Contacts
Safe Ways to Remove a Scleral Lens That Feels Stuck
A scleral lens should be released at its edge, not pulled from the center. Follow a calm removal sequence and know when to stop and call the clinic.
Updated Jul 29, 2026 / 6 min read
Optical
How to Read an Eyeglass Prescription Correctly
Sphere, cylinder, axis, add, and prism describe different parts of an optical correction. Learn what each field means without turning the numbers into a diagnosis.
Updated Jul 29, 2026 / 6 min read
Specialty Contacts
Choosing a Safe Scleral Lens Filling Solution
A scleral lens filling liquid needs to be sterile, preservative free, and approved for your eye and lens. Use this decision guide before changing products.
Updated Jul 29, 2026 / 6 min read
Optical
How to Verify UV Protection in Sunglasses
Dark lenses do not prove ultraviolet protection. Learn what a reliable label should say, what an optical tester can verify, and which features are separate.
Updated Jul 29, 2026 / 6 min read
Cornea
How Long a Corneal Abrasion Usually Takes to Heal
Small superficial abrasions often improve quickly, but contact lens wear, infection, retained debris, and recurrent erosion can change the course.
Updated Jul 29, 2026 / 6 min read
Emergencies
Hot Oil in the Eye and What to Do First
Hot cooking oil can injure the eyelids, conjunctiva, and cornea. Begin gentle irrigation, remove contacts, avoid ice and rubbing, and arrange urgent assessment.
Updated Jul 29, 2026 / 6 min read
Cornea
Can Mold Exposure Cause a Corneal Scar?
Everyday airborne mold exposure usually causes irritation or allergy, not a corneal scar. Scarring is more concerning after fungal infection or eye injury.
Updated Jul 29, 2026 / 6 min read
Glaucoma
Caffeine With Glaucoma and What the Evidence Means
Caffeine can temporarily affect eye pressure in some people, but glaucoma risk depends on far more than one drink. Learn how to make a personal decision.
Updated Jul 29, 2026 / 6 min read
Emergencies
Blurry Vision After an Eye Injury Needs the Right Triage
Blur after an eye injury can come from tears or a scratch, but it can also signal bleeding, retinal damage, fracture, or an open globe. Know what not to do.
Updated Jul 29, 2026 / 6 min read
Primary Eye Care
Ten Ways to Relieve Red Eyes Safely
Red-eye relief depends on the cause. Compare ten practical options for dryness, allergy, contact lens irritation, injury, and conditions that need medical care.
Updated Jul 29, 2026 / 6 min read