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- 1. MCQ on Anatomy of Eye Optometry fans www.optometry.fans
- 2. 1. Anteroposterior diameter of normal adult eyeball is….. • A. 25 mm • B. 24 mm • C. 23.5 mm • D. 23 mm
- 3. 2. Smallest diameter of the eyeball is…. • A. Vertical • B. Horizontal • C. Anteroposterior • D. More than 24 mm
- 4. 3. Circumference of an adult eyeball is: • A. 80 mm • B. 65 mm • C. 75 mm • D. 70 mm
- 5. 4. Volume of an adult eyeball is… • A. 7.5 mL • B. 6.5 mL • C. 5.5 mL • D. 8 mL
- 6. 5. Weight of an adult eyeball is… • A. 7 g • B. 9 g • C. 11 g • D. 13 g
- 7. 6. Anterior segment of the eyeball includes structures lying in front of the…. • A. Iris • B. Crystalline lens • C. Vitreous body • D. Cornea
- 8. 7. Diameter of an adult crystalline lens is: • A. 5–6 mm • B. 7–8 mm • C. 9–10 mm • D. 11–12 mm
- 9. 8. Thickness of the adult crystalline lens is about • A. 2.5 mm • B. 3.5 mm • C. 4.25 mm • D. 5 mm
- 10. 9. Capsule of the crystalline lens is thinnest at…. • A. Anterior pole • B. Posterior pole • C. Equator • D. None of the above
- 11. 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
- 12. 11. In a normal adult person the depth of anterior chamber in the centre is about… • A. 2.5 mm • B. 3 mm • C. 3.5 mm • D. 4 mm
- 13. 12. Adult size of the cornea is attained by the age of • A. 2 years • B. 3 years • C. 5 years • D. 9 years
- 14. 13. Sclera is weakest at the level of… • A. Macula • B. Equator • C. Insertion of extraocular muscles • D. Ora serrata
- 15. 14. The definitive colour of the iris depends upon the…. • A. Anterior limiting layer • B. Stroma • C. Anterior pigmented epithelium • D. Posterior pigmented
- 16. 15. Diameter of the optic disc is • A. 1.5 mm • B. 2.5 mm • C. 3.5 mm • D. 5 mm
- 17. 16. Diameter of the macula lutea is: • A. 1.5 mm • B. 3.5 mm • C. 4.5 mm • D. 5.5 mm
- 18. 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
- 19. 18. Optic nerve consists of axons of… • A. Ganglion cells • B. Bipolar cells • C. Rods and cones • D. All of the above
- 20. 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
- 21. 20. Neurons of first order for visual sensations are: • A. Rods and cones • B. Bipolar cells • C. Ganglion cells • D. None of the above