Which of the following organs if get damaged will cause visual impairment?
1. Pupil
2. Retina
3. Optic nerve
1
2 and 3 only
2
1, 2 and 3
3
1 and 3 only
4
1 only
Which of the following organs if get damaged will cause visual impairment?
1. Pupil
2. Retina
3. Optic nerve