Optical
Together, the cornea and lens refract light into a small image and shine it on the retina. The … 展开

Infancy
Newborn infants have limited color perception. One study found that 74% of newborns can distinguish red, 36% green, 25% yellow, and 14% blue. After one month, performance "improved somewhat." Infant's eyes … 展开

Different species are able to see different parts of the light spectrum; for example, bees can see into the ultraviolet, while pit vipers can accurately target prey with their pit organs, … 展开

• The eye, especially the retina
• The optic nerve
• The optic chiasma
• The optic tract 展开

Balance
Along with proprioception and vestibular function, the visual system plays an important role in the ability … 展开

Proper function of the visual system is required for sensing, processing, and understanding the surrounding environment. Difficulty in … 展开

In the second half of the 19th century, many motifs of the nervous system were identified such as the neuron doctrine and brain localization, which related to the neuron being … 展开