The aperture suuround by the iris is called

Options

A. pupil
B. retina
C. cornea
D. sclera

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of the aperture that is surrounded by the iris in the eye.

2. **Identifying the Role of the Iris**: The iris is a part of the eye that functions to control the amount of light that enters the eye. It does this by adjusting the size of the aperture.

3. **Defining the Aperture**: The aperture that is surrounded by the iris is known as the pupil. The pupil is the opening that allows light to enter the eye.

4. **Analyzing the Options**:
- Option A: Pupil
- Option B: Retina
- Option C: Cornea
- Option D: Sclera

5. **Evaluating the Options**:
- The pupil is indeed the aperture surrounded by the iris.
- The retina is the light-sensitive layer at the back of the eye.
- The cornea is the transparent front part of the eye that covers the iris and pupil.
- The sclera is the white outer layer of the eyeball.

6. **Conclusion**: Based on the definitions and functions of these parts of the eye, the correct answer is option A, which is "pupil".

**Final Answer**: The aperture surrounded by the iris is called the **pupil**.

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