Chapter 14: The Eye
D. Wilkie and C. Premanandan
The eye itself can be divided into 3 concentric tunics plus the internal components. This chapter will cover the eye.
Chapter Learning Objectives
By the end of this chapter, you should be able to do the following:
- Describe the three concentric tunics of the eye
- Describe the components of each at the level of the retina, lens and iris, and cornea.
By the end of this chapter, you should be able to answer the following:
- What are the layers of the cornea? Explain the function of each layer and how it responds to injury/heals.
- How does the tear film work and relate to the corneal epithelium? 3
- What structures comprise the vascular tunic of the eye? What is the specific function of each of the regions of the vascular tunic?
- Where is the tapetum? What is its function?
- Describe the anatomy/ histology of the lens and the regional variations within the lens.
- Describe the 10 layers of the retina, and how vision occurs as a photon of light enters the eye.
- Trace the path of light, describe how each layer of the eye affects this photon and how it is ultimately sent to the brain.