Читать книгу Essentials of Veterinary Ophthalmology - Kirk N. Gelatt - Страница 105

The goal of this section is to describe the physical, anatomical, and physiological aspects of the process of vision, and it has been divided into two parts. The first part is devoted to light and vision and the different refractive structures of the eye. It covers the physical changes that light undergoes during its passage from the cornea, through the various structures of the eye, until it reaches the retina. The second part is devoted to the visual processing and describes what happens once light reaches the retina. This part is dedicated to the neuronal processes of vision and describes the generation, processing, and propagation of the visual signal in the retina, the visual pathways, and the cortex. Both these parts lay the foundations for understanding how optical and neuronal processes enable the detection of movement, details, and color that create the rich experience of vision described in last section of this chapter.