In brief
Short, clear answers to the questions people most often ask about eye tests, glasses and eye health.
This information is general and does not replace an eye examination or advice from an eye-care professional. If you have a problem with your eyes or vision, please see an optometrist or ophthalmologist.
Frequently asked questions
What does an optometrist do?
An optometrist examines your eyes, tests your vision, prescribes glasses and contact lenses, detects eye conditions and refers you to an ophthalmologist when treatment or surgery is needed.
How often should I get an eye test?
Most adults benefit from a test every one to two years. People with diabetes, a family history of eye disease, or children should be tested more often.
Do I need an eye test if I can see well?
Yes. Conditions such as glaucoma and diabetic retinopathy can develop without symptoms, so a normal-feeling eye can still have a problem.
Are over-the-counter reading glasses safe?
They can be convenient but do not account for differences between your eyes or check eye health. A proper eye examination is the safer choice.
How can I reduce digital eye strain?
Take regular breaks (look 20 feet away every 20 minutes), blink often, adjust screen brightness and distance, and make sure that your prescription is up to date.
When is an eye problem an emergency?
Seek urgent care for sudden loss or change of vision, a curtain across vision, flashes with new floaters, severe eye pain or an eye injury.
Are my child’s frequent headaches related to their eyes?
They can be. Uncorrected vision problems may cause headaches, so a child with frequent headaches should have an eye test.
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