Your ophthalmologist may order a special test to determine how well you see in your "peripheral vision." Your peripheral vision is used to notice images at the outer edges of your visual field. This differs from your central vision, which you use to read signs or books, for instance.
The test takes about 30 minutes for both eyes. It is performed by a specially trained ophthalmic technician in a darkened room on the 4th floor of the Eye Department.
What should I wear?
Wear something loose and cool. Bring your distance prescription glasses, if you have any.
Where do I register?}
You can register on the 4th floor of the Eye Department. It is important you arrive on time because of the length of the test.
What does the test actually involve?
You will sit in front of a computerized sphere in a darkened room. Your chin and forehead will be stabilized. You will be acquainted with the fixation light and be advised to keep looking straight ahead. Try to relax during your test.
What actually happens?
You will be asked to identify quickly appearing spots on a darkened globe while looking straight ahead. You will be pressing a button whenever a light seems to appear to you. Do not be distressed if you do not push the button fast enough, or if you are not sure. Sometimes, the computer will have spots reappear in the same place.
Your eyes will not be dilated, there is no pain. This is not an x-ray. If you become fatigued, we can take a break during the testing.
Your ophthalmologist will discuss your results at your next appointment.