Low Vision Online  
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The External

Cause and/or Prevention

The Internal Eye

The Visual System

Common Causes of Low Vision

Eye Disorders and Practical Implications

Links &


Eye Care
Chapter Objectives

At the end of this chapter you should be able to:

Identify the external parts of the eye and list their functions

Recognise 6 signs of a healthy eye

Understand causes and prevention of common external eye problems in developing countries

Identify the main internal parts of the eye and their functions

Illustrate how the visual system works

Know 6 common eye problems and relate them to the parts of the eye affected

Understand the practical implications of common eye diseases


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