Question: 169 Match List I with List II with respect to human eye.
| List I | List II |
|---|---|
| A. Fovea | I. Visible coloured portion of eye that regulates diameter of pupil. |
| B. Iris | II. External layer of eye formed of dense connective tissue. |
| C. Blind spot | III. Point of greatest visual acuity or resolution. |
| D. Sclera | IV. Point where optic nerve leaves the eyeball and photoreceptor cells are absent. |
Choose the correct answer from the options given below:
(1) A-I, B-IV, C-III, D-II
(2) A-II, B-I, C-III, D-IV
(3) A-III, B-I, C-IV, D-II
(4) A-IV, B-III, C-II, D-I
Answer: Option (3)
Explanation:
The fovea is the region of the retina responsible for the sharpest vision and thus represents the point of greatest visual acuity.
The iris is the visible coloured part of the eye and regulates the diameter of the pupil to control the amount of light entering the eye.
The blind spot is the point on the retina where the optic nerve leaves the eyeball, and it lacks photoreceptor cells.
The sclera is the outermost protective layer of the eye and is composed of dense connective tissue.
Hence, the correct matching is A-III, B-I, C-IV and D-II.