The hypermetropia is a

Options

A. short-sight defect
B. long-sight defect
C. bad vision due to old age
D. None of the above

Answer

### Step-by-Step Solution:

1. **Definition of Hypermetropia**:
Hypermetropia, also known as hyperopia or long-sightedness, is a common vision condition where distant objects can be seen clearly, but close objects appear blurry. This occurs because light entering the eye is focused behind the retina.

2. **Symptoms**:
Individuals with hypermetropia often experience difficulty in seeing nearby objects clearly. They may need to squint or strain their eyes to focus on close objects, which can lead to eye discomfort or fatigue.

3. **Cause of Hypermetropia**:
Hypermetropia can be caused by an eyeball that is too short or a cornea that is too flat, resulting in the light rays focusing behind the retina instead of directly on it.

4. **Correction of Hypermetropia**:
Hypermetropia is typically corrected using convex lenses (also known as converging lenses). These lenses help to converge the light rays before they enter the eye, allowing them to focus directly on the retina.

5. **Conclusion**:
Therefore, hypermetropia is characterized by the ability to see distant objects clearly while struggling to see nearby objects. The condition is effectively corrected with the use of convex lenses.