Ophthalmologists and optometrists diagnose peripheral vision loss by performing vision tests to see how far to the side a person can see or identify an object. A confrontation visual field test is ...

There are two possibilities; either the 'private line' ensured ... A critical test between these hypotheses is color vision in far peripheral retina, at eccentricities beyond 20-30 degrees.

It took Glenn Calverley a while to figure out he was having a stroke. It just felt like a really bad headache that wouldn't ...

You may need a visual field test to help your doctor monitor or see signs of certain diseases like glaucoma. In the earlier stages of glaucoma, you may lose peripheral vision without realizing it ...

This is how it feels to have “tunnel vision” -- a loss of your peripheral vision ... Your eye doctor will give you a visual field test to check for blank spots in your vision -- spots you ...