HPN2: THE EYES AND VISION AND THE RETINA AND NEURAL PROCESSING OF VISUAL INFORMATION

This unit dwells in the structures that make up the eye as well as explain basic concepts in light and vision, the process of refraction ,discuss accommodation as one of the mechanisms of image formation , the visual acuity ,highlight some common defects of image formation and visual acuity and the retina and neural processing of visual information which is a photo-chemical reactions that take place in the rods and cones and other layers of the retina to generate impulses, as well as the way impulses are channeled and interpreted by the visual components of the nervous system.