Vision

Visual Blind Spot Test

Find your eye's natural blind spot — the area where the optic nerve connects and no photoreceptors exist. Cover one eye and follow the instructions.

Optic nerve Reference only

Instructions

  1. Cover your RIGHT eye with your hand.
  2. Focus your LEFT eye on the + symbol on the right.
  3. Slowly move closer or farther from the screen.
  4. At some distance, the black dot on the left will disappear — that's your blind spot!
  5. Try again covering the LEFT eye, focusing on the dot.
+

Adjust your viewing distance between 20–60 cm for best results.

About the blind spot

Every human eye has a natural blind spot (scotoma) where the optic nerve exits the retina. At this point there are no photoreceptors (rods or cones), so the eye cannot detect light.

Normally we don't notice it because our brain fills in the gap using surrounding visual information, and both eyes compensate for each other.

This test is for educational purposes only. If you notice unusual blind spots in daily vision, consult an eye care professional.

Animated version

Cover right eye, focus on '+'. Click Start to move the dot.