Final answer:
The blind spot in our vision is caused by the absence of light receptors in the area where the optic nerve meets the eye. Our brain compensates for the blind spot to ensure that we do not experience a gap in our visual field.
Step-by-step explanation:
The lack of light receptors in the blind spot, also known as the optic disc, the region where the optic nerve and the eye meet, results in a blind spot in our vision. This is because nerve fibers that transmit visual information from the retina to the brain reside in this region. The blind spot is a region of vision where light does not detect visual information and is therefore invisible.
Our brain makes up for any blind spots in our field of vision, which is why we do not feel them. Because each eye sees the visual field slightly differently, the blind spots in each eye do not overlap. Furthermore, our visual system fills in the blanks from the blind spot, enabling us to perceive a gap-free, full visual field.