To test for the blind spots in your eyes?

Question

A. do not use eyeglasses unless you need them.

B. focus intently on whatever you’re viewing.

C. keep your eyes wide open in bright light.

D. close one eye.

Answer 1

Hi again, Nadya!

 

Your blind spot is the point where the some of your ocular (vision) nerve fibers connect to the retina by laying on top of it, meaning there are no photoreceptors there to detect light.  Each human eye has one, and if you move your eye so that a certain object is focused by the the lens onto that blind spot, the object is not perceived visually.  Typically, however, this particular orientation does not happen in both eyes at the same time.  If an object is on the blind spot in one eye, it is often just off the blind spot in the other eye.  So, to see an object disappear in a blind spot, it is usually advantageous to look through only one eye, to detect the blind spot in that eye.

 

Hope this helps!