Ocular Anatomy and physiology MCQs
- MCQ on Eye Anatomy
- Eye Anatomy Multiple Choice Questions
- Physiology of Eye MCQ
- Eye Structure Quiz
- Ocular Anatomy MCQ
- Vision System MCQs
- Human Eye Physiology Questions
- Eye Anatomy Practice Test
- Eye Function MCQ
- Ophthalmology MCQ
- Eye Anatomy and Physiology Quiz
- Eye Exam Questions
- Eye Anatomy Test Preparation
- Eye Anatomy and Physiology MCQ
- Eye Structure and Function MCQ
1. Antero-posterior diameter of a normal adult eyeball is:
A. 25 mm
B. 24 mm
C. 23.5 mm
D. 23 mm
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2. Smallest diameter of the eyeball is:
A. Vertical
B. Horizontal
C. Antero-posterior
D. A & B
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3. Circumference of an adult eyeball is:
A. 80 mm
B. 65 mm
C. 75 mm
D. 70 mm
---
4. Volume of an adult eyeball is:
A. 7.5 mL
B. 6.5 mL
C. 5.5 mL
D. 8.0 mL
---
5. Weight of an adult eyeball is:
A. 7 g
B. 9 g
C. 11 g
D. 13 g
---
6. Anterior segment of the eyeball includes structures lying in front of the:
A. Iris
B. Crystalline lens
C. Vitreous body
D. Cornea
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7. Diameter of an adult crystalline lens is:
A. 5–6 mm
B. 7–8 mm
C. 9–10 mm
D. 11–12 mm
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8. Thickness of the adult crystalline lens is about:
A. 2.5 mm
B. 3.5 mm
C. 4.25 mm
D. 5 mm
---
9. Capsule of the crystalline lens is thinnest at:
A. Anterior pole
B. Posterior pole
C. Equator
D. None of the above
---
10. The youngest lens fibres are present in:
A. Central core of the lens nucleus
B. Outer layer of the nucleus
C. Deeper layer of the cortex
D. Superficial layer of the cortex
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11. In a normal adult person, the depth of the anterior chamber in the centre is about:
A. 2.5 mm
B. 3 mm
C. 3.5 mm
D. 4 mm
---
12. Adult size of the cornea is attained by the age of:
A. 2 years
B. 3 years
C. 5 years
D. 9 years
---
13. Sclera is weakest at the level of:
A. Macula
B. Equator
C. Insertion of extraocular muscles
D. Ora serrata
---
14. The definitive colour of the iris depends upon the:
A. Anterior limiting layer
B. Stroma
C. Anterior pigmented epithelium
D. Posterior pigmented
---
15. Diameter of the optic disc is:
A. 1.5 mm
B. 2.5 mm
C. 3.5 mm
D. 5 mm
---
16. Diameter of the macula lutea is:
A. 1.5 mm
B. 3.5 mm
C. 4.5 mm
D. 5.5 mm
---
17. Major retinal vessels are present in:
A. Between the vitreous and internal limiting membrane
B. The nerve fibre layer
C. The inner plexiform layer
D. The inner nuclear layer
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18. Optic nerve consists of axons of:
A. Ganglion cells
B. Bipolar cells
C. Rods and cones
D. All of the above
---
19. Optic nerve fibres once cut, do not regenerate because they are not covered by:
A. Myelin sheath
B. Neurilemma
C. Both of the above
D. None of the above
---
20. Neurons of first order for visual sensations are:
A. Rods and cones
B. Bipolar cells
C. Ganglion cells
D. None of the above
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