Skip to main content
Medicine LibreTexts

14.1: The Eye

  • Page ID
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    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

    imageBy 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.

    Review Questions

    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.

    14.1: The Eye is shared under a CC BY-NC-ND license and was authored, remixed, and/or curated by LibreTexts.

    • Was this article helpful?