Other Eyes Defects

Q.

A man can see only between 75 cm and 200 cm. The power of lens to correct

the near point will be

1. + 8/3 D
2. + 3 D

3. - 3 D

4. - 8/3 D

Q.

Astigmatism can be removed by using _______lenses.

Q. A person's near point is 50 cm and his far point is 3 m. Power of the lenses he requires for (i) reading and
(ii) for seeing distant stars are

1. – 2 D and 0.33 D
2. 2 D and – 0.33 D
3. – 2 D and 3 D
4. 2 D and – 3 D

Q. A person's near point is 50 cm and his far point is 3 m. Power of the lenses he requires for (i) reading and
(ii) for seeing distant stars are

1. – 2 D and 0.33 D
2. 2 D and – 0.33 D
3. – 2 D and 3 D
4. 2 D and – 3 D