Question

Part of the eye which controls the light entering is called?

• A. Iris
• B. Cornea
• C. Lens
• D. Retina

Answer 1

The correct option is A

Iris

The correct option is A.

Explanation of the Correct option:

1. The iris is a ring-shaped structure made of black muscle tissue that is located beneath the cornea.
2. The eye's color is determined by the color of the iris.
3. By changing the iris, the iris also helps to regulate or modify exposure.
4. The iris' function is to regulate how much light enters the eye.

Explanation of the Incorrect options:

Option B:

The iris, pupil, and anterior chamber are protected by the cornea, the transparent front part of the eye that does not function to control light.

Option C:

The lens acts as a medium of either converging or diverging to focus the light rays on the retina.

Option D:

The retina's goal is to receive light focused by the lens, interpret it into neural signals, and send those signals to the brain for visual recognition.

Final answer: Part of the eye which controls the light entering is called the Iris.