CHAPTER 51

Chapter 51: Visual Sensations – Retina and Optic Nerve (Guyton & Hall Physiology)

This chapter explains how light is converted into neural signals by rods and cones, emphasizing phototransduction mechanisms.
It details retinal circuitry (bipolar, horizontal, amacrine, ganglion cells) and principles like dark/light adaptation and lateral inhibition.
Clinical correlations include night blindness, color vision defects, macular degeneration, and the physiological basis of visual acuity and contrast.