Why a full eye examination matters
Many eye conditions develop silently. A comprehensive examination can find glaucoma, cataract, diabetic retinopathy and macular problems long before vision is affected.
Step by step
- History: your symptoms, medicines, diabetes, blood pressure and family history.
- Visual acuity: reading a chart with and without glasses.
- Refraction: finding the spectacle power that gives the clearest vision.
- Eye pressure: a quick, painless measurement to screen for glaucoma.
- Slit-lamp exam: a magnified look at the cornea, lens and front of the eye.
- Dilated retina exam: drops widen the pupil so the retina and optic nerve can be checked.
How to prepare
- Bring current glasses, contact lenses and old eye records.
- List all medicines and existing health conditions.
- Arrange someone to accompany you, as dilating drops blur near vision and cause glare for a few hours.
- Bring insurance details if you may need further tests.
How often?
Most adults benefit from a check-up every one to two years, yearly if you have diabetes, high blood pressure or are over 40.