Chapter 30, Problem 2CT

Summary Introduction

To determine:

The reasons that the presence of the reflective layer at the back of the retina makes the eye more sensitive for the light and is also responsible for the reduced ability to distinguish fine details.

Introduction:

The eye is a sensory organ that detects the light and converts the image into electrical signals. These signals are transferred to the visual cortex of the brain. Specialized cells called photoreceptor cells receive the light and convert it to the neural signals. Cone cells and rod cells are two different types of photoreceptors. Cone cells are responsible for colored vision, and rod cells are responsible for visualization in the presence of very less light.