The eye is the organ that is involved in sensing the light signals. The visual system is comprised of the eyes, the accessory structures and the optic nerves, tracts and pathways. The eyeball is the internal part of the eye and it has a wall which is composed of three layers: 1. Fibrous tunic. 2. The vascular tunic. 3. Nervous tunic.

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Chapter 15, Problem 5RAC

Summary Introduction

Introduction:

The eye is the organ that is involved in sensing the light signals. The visual system is comprised of the eyes, the accessory structures and the optic nerves, tracts and pathways.

The eyeball is the internal part of the eye and it has a wall which is composed of three layers:

1. Fibrous tunic.

2. The vascular tunic.

3. Nervous tunic.

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