Why do we not perceive or notice the blind spot of the retina during the normal course of our lives?
A) The position of the blind spot is in the extreme periphery of our vision
B) Because the fovea is not affected by the blind spot
C) The brain "fills in" the missing information for us based on experience
D) The muscles of the eye prevent light from entering that area

Question

Quizplus · Accepted Answer

The brain provides a continuous stream of visual information by filling in the missing information of the blind spot based on past experiences. This process is done subconsciously, without us realizing it, thus making us unaware of the blind spot. Additionally, the blind spot is located in the extreme periphery of our vision, which further helps to conceal it. The fovea is not affected by the blind spot, but this is not the main reason why we do not perceive it. The muscles of the eye do not prevent light from entering the blind spot, rather the blind spot is a natural occurrence due to the optic nerve exiting the eye.

Why Do We Not Perceive or Notice the Blind Spot