Which of the following lens is used to minimise myopia?

Options

A. Convex lens
B. Concave lens
C. Cylindrical lens
D. None of these

Explanation

To solve the question, "Which of the following lens is used to minimize myopia?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand Myopia**: Myopia, also known as nearsightedness, is a condition where distant objects appear blurry while nearby objects can be seen clearly. This occurs because the eye's lens focuses images in front of the retina instead of directly on it.

2. **Identify the Problem**: In myopia, the image is formed before it reaches the retina. This means that the light rays entering the eye converge too soon.

3. **Determine the Solution**: To correct myopia, we need a lens that will diverge the light rays before they enter the eye. This will allow the rays to converge at the correct point on the retina.

4. **Choose the Correct Lens**:
- **Convex Lens**: This lens converges light rays and is used for hyperopia (farsightedness), not myopia.
- **Concave Lens**: This lens diverges light rays, making it suitable for correcting myopia by allowing the light to spread out before it enters the eye.
- **Cylindrical Lens**: This lens is used to correct astigmatism, not specifically for myopia.

5. **Conclusion**: The correct lens to minimize myopia is the **Concave Lens**.

### Final Answer:
The lens used to minimize myopia is the **Concave Lens**.

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