The blind spot refers to a small area in the retina of the eye where there are no photoreceptor cells, resulting in a lack of visual perception.
The retina is the innermost layer of the eye that contains photoreceptor cells responsible for detecting light and sending signals to the brain.
The optic nerve carries visual information from the retina to the brain for processing and interpretation.
Visual perception refers to how our brains interpret and make sense of visual information received from our eyes.