Physiology and development of vision

Abstract

Vision is a cerebral process. The eyes act as organs of selective conversion of the light stimulus to electrical signals. Throughout the visual system the stimuli are refined until they generate an unique visual impression, probably in the occipital cortex. There is a period of the life where this process develops and at which end it consolidates itself, called Period of Maturation of the Visual Perception. Didactically the vision is divided in central and peripheral. The measurement of the first is called “visual acuity” and is done with tables generally used at five meters. The measurement of the second is called “visual field” and is generally done with perimeters. The present work discusses all these issues.