This document discusses various aspects of visual processing and disorders. It outlines the initial visual pathway from the eyes to the optic chiasm and optic radiations. It then describes two middle visual pathways - one involving the geniculostriate path to primary visual cortex for pattern analysis and color perception, and another tectopulvinar path to secondary visual cortex for detection and orientation. Various visual disorders are discussed including visuoperceptual, visuospatial, and visuomotor disturbances, with specific disorders like visual agnosias, distortion, confusion, and integration problems explained. Tests to assess these disorders are also provided.