A comprehensive eye exam is different from a quick glasses check at an optical shop. An ophthalmologist examines the health of the whole eye, which can reveal conditions such as glaucoma, cataract and diabetic changes long before you notice symptoms.
Before you arrive
- Bring your current glasses and contact lenses, and any old prescriptions
- Bring a list of your medicines and health conditions, such as diabetes or blood pressure
- Bring sunglasses, and arrange for someone else to drive
- Note any symptoms you want to discuss
What happens during the exam
- History. We ask about your eyes, general health, medicines and family history.
- Vision test. You read letters on a chart for distance and near vision.
- Refraction. Lenses are adjusted to find your exact glasses power.
- Eye pressure. A quick, painless measurement screens for glaucoma.
- Slit lamp examination. A microscope with a bright light examines your lids, cornea, iris and lens.
- Dilation. Drops widen your pupils so the doctor can see the retina and optic nerve clearly.
- Discussion. Your doctor explains the findings, any treatment and costs, and when to come back.
About dilating drops
The drops take about 20 to 30 minutes to work. Afterwards, your vision will be blurry, especially up close, and bright light may feel uncomfortable for a few hours. This is normal and wears off.
Questions you might ask
- Are my eyes healthy?
- Do I need glasses, or a change in my glasses?
- Am I at risk of any eye disease?
- When should I have my next check?
Read about our comprehensive eye check-ups or book a visit.
Frequently asked questions
Does an eye exam hurt?
No. Some tests involve bright lights or a puff of air or a gentle touch after numbing drops, but none are painful.
How often should adults have an eye exam?
Every two years under 40 if you have no symptoms, and every year after 40 or if you have diabetes, high blood pressure or a family history of glaucoma.
Sources
This article is for general information and does not replace an examination by an eye doctor. If you have symptoms, please book a consultation.