Question

Myopia (short-sightedness) is a defect in human eyes in which the image formed

• A. in front of the retina and can be corrected by using a concave lens.
• B. in front of the retina and can be corrected by using convex lens.
• C. behind the retina and can be corrected by using a concave lens.
• D. behind the retina and can be corrected by using a convex lens.

Answer 1

The correct option is A

in front of the retina and can be corrected by using a concave lens.

The correct option is A

The explanation for the correct option:

1. Myopia is a refractive defect of vision.
2. Also known as short-sightedness because a person can see the near objects but are not able to see distant objects.
3. For a person suffering from myopia, the object is formed in front of the retina instead of, on the retina.
4. This can be corrected by using the concave lens, the image will form on the retina.

The explanation for the incorrect options:

Option B:

In a myopic eye, an image is formed in front of the retina and can be corrected by using a concave lens, not a convex lens.

Option C:

In a myopic eye, the image is formed in front of the retina not behind the retina as in the case of hypermetropia (far-sightedness)

Option D:

In a myopic eye, the image is formed in front of the retina, not behind the retina (hypermetropia), and can be corrected by a concave lens, not the convex lens.

Final answer: Myopia (short-sightedness) is a defect in the human eyes in which the image is formed in front of the retina and can be corrected by using a concave lens.