The Eye and Vision: DGCA Air Regulations questions

Question 1

What part of the eye bends the most light?

Accepted Answer

The cornea.

Answer

The lens.

Answer

The pupil.

Answer

The retina.

Question 2

Which part of the eye has the best visual acuity?

Accepted Answer

The fovea.

Answer

The retina.

Answer

The lens.

Answer

The cornea.

Question 3

The resolving power of the fovea decreases rapidly at only how many degrees from its centre?

Accepted Answer

5°.

Answer

13° to 16°.

Answer

3°.

Answer

2° to 3°.

Question 4

What is empty field myopia?

Accepted Answer

When the eye, having nothing to focus on, tends to focus between just under 1 to 1.5 metres.

Answer

When the eye, having nothing to focus on, tends to focus at infinity.

Answer

When the eye, having nothing to focus on, tends to focus between 4 to 6 metres.

Answer

When the eye, having nothing to focus on, tends to focus between 10 to 12 metres.

Question 5

What causes long or short sightedness?

Accepted Answer

Distortion of the eyeball.

Answer

Presbyopia.

Answer

Astigmatism.

Answer

Distortion of the cornea.

18 more questions in this chapter, free with an account