Question

defects of vision and their correction with example​

Answer 1

Answer:

Defects of Vision and their Correction

1 Defects of vision and their correction.

2 Myopia (Short-sightedness or Near-sightedness)

3 (1) Due to high converging power of eye-lens (because of its short focal length)

4 (2) Due to eye-ball being too long.

5 Myopia (short-sightedness or near-sightedness) is corrected by using spectacles containing concave lenses.

Answer 2

1 Defects of vision and their correction.

2 Myopia (Short-sightedness or Near-sightedness)

3 (1) Due to high converging power of eye-lens (because of its short focal length)

4 (2) Due to eyeball being too long.

5 Myopia (short-sightedness or near-sightedness) is corrected by using spectacles containing concave lenses.