A little clarity. A better next step.
Your eyes matter.
Let’s make sense of them.
Understand a symptom, explore a diagnosis, or feel more prepared for your next appointment. Clear eye health information, at your pace.
Medical reviewMr Mohamed MohyudinConsultant ophthalmic surgeonMr Mohyudin’s official website Editorial policy Start with what you notice
What’s changed with your eyes?
Find guidance on your symptoms and learn when to get help. This is information, not a diagnosis.
Pain and redness
Check urgencyChildren and emergencies
Same-day adviceEveryday concerns
Learn next stepsBrowse all 24 symptoms
- Blurred vision
- Red eye
- Eye pain
- Itchy eyes
- Dry, gritty eyes
- Flashes and floaters
- Double vision
- Light sensitivity
- Watering eyes
- Sudden vision loss
- Eye discharge
- Swollen eyelid
- Eye strain
- Halos around lights
- Difficulty seeing at night
- Cloudy vision
- Burning eyes
- Distorted vision
- Peripheral vision loss
- Pressure behind the eye
- Feeling of something in the eye
- Yellow eyes
- Leukocoria (white pupil reflex)
- Unequal pupils (anisocoria)
- See all symptoms →
Explore the essentials
A clearer picture of your eye health.
Understand common conditions, what to look out for, and the care available.
Cataracts
Guide & next stepsAge-related clouding of the lens that blurs and glares; surgery is the only cure when daily life is affected — sudden vision loss is not typical cataract.
Read the guideGlaucoma
Guide & next stepsOptic nerve damage often linked to eye pressure; the common type is silent until side vision is lost — regular tests are essential.
Read the guideAge-related macular degeneration
Guide & next stepsDamage to the central retina that blurs reading and faces; dry AMD is slower, wet AMD can drop vision quickly and needs urgent injections.
Read the guideDry eye
Guide & next stepsTears too few or evaporating too fast; overlaps with blepharitis and MGD — lubricants, lid care and prescriptions help most people.
Read the guideDiabetic retinopathy
Guide & next stepsDiabetes damages retinal vessels, often before you notice; screening finds treatable change — sudden floaters or vision loss are emergencies.
Read the guideFloaters and flashes
Guide & next stepsDrifting spots and brief light flashes are common with age; a sudden shower of floaters or a curtain of vision loss is an emergency.
Read the guideBefore your appointment
Better questions. A clearer conversation.
Considering cataract surgery? Build a list of questions about lenses, everyday vision, and what matters to you.
Prepare my questions Patient resources ↓Quick answers
A few things you may be wondering.
Browse all conditions · Check your symptoms
Frequently asked questions
What is Eye Health Guide?
Eye Health Guide provides free information about eye symptoms, conditions, treatments, and everyday care. You can read it in English, Spanish, or Indonesian.
Which eye symptoms are an emergency?
Sudden vision loss, a new shower of floaters or flashing lights, a curtain or shadow over your vision, severe eye pain, chemical splash, trauma, or double vision with weakness or speech changes need same-day medical care.
How often should adults have eye exams?
Many adults benefit from a full eye exam every one to two years, and more often with diabetes, a strong glasses prescription, or a family history of glaucoma or macular degeneration.
Can I use this site instead of seeing a doctor?
No. This site provides general information only and never replaces a personal consultation, diagnosis, or treatment plan from your own eye-care professional.
Is the content medically reviewed?
Mr Mohamed Mohyudin is the site’s named medical reviewer. Articles distinguish a historical site review from an individual approval of the current text. Read the review note beside the byline to see which record is available.
What languages are available?
You can read every guide in English, Spanish, or Indonesian. Use the language menu at the top of the page to switch languages without losing your place.