Casey Eye Institute at OHSU, Portland, Oregon

Where Healing, Teaching and Discovery Come Together

Eye Examinations


During an eye exam, an eye doctor reviews your medical history and completes a series of tests to determine the health of your eyes. The information from an eye exam may lead to medical procedures or prescriptions. Eye examinations should take place periodically as follows:

  • By Age Four
    All children should have their eyes checked by age four. If there is family history of childhood vision problems, or if the child has a wandering or crossed eye or other eye problem, his or her eyes should be checked earlier.
  • Before Age 20
    As recommended by a pediatrician or other physician.
  • Age 20 to 40
    Every 5 years, unless you experience any problems such as visual changes, pain, flashes of light, new floaters or tearing, or if you sustain an injury to the eye.
  • Age 40 - 64
    Every two to four years.
  • Over 65
    Every one to two years.
  • African Americans are at greater risk for glaucoma, and should have eye examinations every three to five years before age 40 and every two years after age 40.
  • Persons with diabetes are at risk for several eye disorders, including diabetic retinopathy, glaucoma and cataracts, and should have eye examinations every year.