
I guess this defines the extent of your fovea. Beyond that your retina doesn't have sufficient contrast to pick up the black dots. twitter.com/MaxCRoser/stat…
Max Roser@MaxCRoser
Your eyes just can't see all 12 back dots at the same time.
English
LeedsVisionResearch
268 posts

@LeedsVRG
The Leeds Vision Research Group researches inherited blinding disorders to identify novel disease genes and advance routine genetic diagnoses.

Your eyes just can't see all 12 back dots at the same time.




















