Question

A student has difficulty in reading the blackboard while sitting in the last row. What could be defect of vision? Draw ray diagram to illustrate this defect and its correction?

Answer 1

Answer:

a.) Myopia

b.) Refer to the attachment.

Explanation:

The defect is myopia.

Myopia is a defect of vision where the patient can't see far off objects clearly but can see nearby objects clearly.

It is caused due to:

1. Excessive curvature of the eye lens.
2. Elongation of the eye ball.