MCQ's In Optometry
1. Sclera is weakest at the level of:
A. Macula
B. Equator
C. Insertion of extraocular muscles
D. Ora serrata
2. The definitive colour of the iris depends upon the:
A. Anterior limiting layer
B. Stroma
C. Anterior pigmented epithelium
D. Posterior pigmented epithelium
3. Circulus iridis major is formed by the anastomosis of:
A. Long posterior ciliary arteries with short posterior ciliary arteries
B. Anterior ciliary arteries with short posterior ciliary arteries
C. Long posterior ciliary arteries with anterior ciliary arteries
D. Long posterior arteries with anterior conjunctival arteries
4. Layer of non-pigmented epithelium of the ciliary body is the forward continuation of the:
A. Pigment epithelium of the retina
B. Sensory retina
C. Internal limiting membrane of the retina
D. Bruch’s membrane of the choroid
5. The number of ciliary processes is about:
A. 20–30
B. 50–60
C. 70–80
D. 90–100
6. All of the following are true about circulus arteriosus minor except:
A. It receives contribution from anterior ciliary arteries and long posterior ciliary arteries
B. It is an arterial and venous plexus
C. It lies near the pupillary margin
D. It is the seat of formation of aqueous humour
7. The strongest attachment of the vitreous body to the surrounding structures is at the level of:
A. Vitreous base
B. Optic disc
C. Posterior surface of the lens
D. Foveal region
8. Diameter of the optic disc is:
A. 1.5 mm
B. 2.5 mm
C. 3.5 mm
D. 5 mm
9. Diameter of the macula lutea is:
A. 1.5 mm
B. 3.5 mm
C. 4.5 mm
D. 5.5 mm
10. Diameter of fovea centralis is:
A. 0.5 mm
B. 1.0 mm
C 1.5 mm
D. 2.5 mm
11. Henle’s layer refers to the thickened outer plexiform layer in the region of:
A. Foveola
B. Foveal region
C. Parafoveal region
D. Paramacular region
12. 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
13. Optic nerve consists of axons of:
A. Ganglion cells
B. Bipolar cells
C. Rods and cones
D. All of the above
14. 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
15. Neurons of first order for visual sensations are:
A. Rods and cones
B. Bipolar cells
C. Ganglion cells
D. None of the above
16. Neurones of third order for visual sensations lie in:
A. Layer of bipolar cells
B. Layer of ganglion cells
C. Lateral geniculate body
D. Visual cortex
17. The longest extraocular muscle is:
A. Superior oblique
B. Inferior oblique
C. Superior rectus
D. Inferior rectus
18. The shortest extraocular muscle is:
A. Superior oblique
B. Inferior oblique
C. Superior rectus
D. Inferior rectus
19. The posterior end of which muscle insertion lies near the macula ?
A. Inferior oblique
B. Superior oblique
C. Superior rectus
D. Inferior rectus
20. The nerve which has the longest intracranial course is:
A. Fourth cranial nerve
B. Third cranial nerve
C. Sixth cranial nerve
D. Fifth cranial nerve
For Answers of the above questions, Please watch this Video.
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