Question

Which of the following statements is true for a human eye?

• A. Iris controls the amount of light entering the eye.
• B. Iris helps in changing the focal length of our eye lens.
• C. Cornea controls the size of the pupil of the eye.
• D. Ciliary muscles change the size of the pupil.

Answer 1

The correct option is A Iris controls the amount of light entering the eye.

Iris controls the amount of light entering the eye through the pupil.
The ciliary muscles control the shape of the eye lens in order to focus the image on the retina.
Cornea is the outermost transparent and tough layer present at the front of the eye.