Optometry and Ophthalmology mcq part: 17 

1. In worth's 4 dot test, patient with Abnormal Retinal Correspondence will see

1. A. 2 dots
2. B. 3 dots
3. C. 4 dots✓
4. D. 5 dots

2. In paralytic squint

1. A. Primary deviation is more than Secondary deviation
2. B. Primary deviation is equal to Secondary deviation
3. C. Primary deviation is less than Secondary deviation✓
4. D. Secondary deviation is absent

3. Duane retraction syndrome (DRS) cause

1. A. Concomitant squint
2. B. Paralytic squint
3. C. Restrictive squint✓
4. D. Pseudo squint

4. Forced duction test (FDT) is used to differentiate

1. A. Latent squint and Manifest squint
2. B. Concomitant squint and Incomitant squint
3. C. Paralytic squint and restrictive squint✓
4. D. Concomitant squint and pseudo squint

5. Positive angle kappa cause

1. A. Esotropia
2. B. Exotropia
3. C. Pseudoexotropia✓
4. D. Pseudoesotropia

6. Muscle pair involved in levoelevation

1. A. Right SR and left IO
2. B. Right SR and left SR
3. C. Right IO and left IO
4. D. Right IO and left SR✓

7. Supranuclear eye movement system with sudden, jerky conjugate eye movements, that occur as the gaze shifts from one object to another is known as

1. A. Saccadic system✓
2. B. Vergence system
3. C. Vestibular system
4. D. Optokinetic system

*SUPRANUCLEAR CONTROL OF EYE MOVEMENTS*

supranuclear control of eye movements helps maintaining binocular single vision even if

the object or the observer’s head and/or body moves supranuclear eye movement systems

• 1. Saccadic system
• 2. Smooth pursuit system
• 3. Vergence system
• 4. Vestibular system
• 5. Optokinetic system
• 6. Position maintenance system

8. Position maintenance system maintain a specific gaze position by means of rapid micromovements called

1. A. Jerks
2. B. Saccades
3. C. Drifts
4. D. Flicks✓

Position maintenance system helps to maintain a specific gaze position by means of

rapid micromovements called ‘flicks’ and slow micromovements called ‘drifts’ .

9. Not a cause of binocular diplopia

1. A. Concomitant Squint✓
2. B. Third nerve palsy
3. C. Internuclear ophthalmoplegia
4. D. Orbital floor fracture

10. In Paralytic squint, false projection is

1. A. Abscent
2. B. Negative
3. C. Positive✓
4. D. None

11. Primary action of inferior rectus

1. A. Adduction
2. B. Abduction
3. C. Infraduction(depression)✓
4. D. Supraduction

12. Secondary action of inferior rectus

1. A. Adduction
2. B. Abduction
3. C. Intorsion
4. D. Extorsion✓

13. Synergist muscle of inferior rectus

1. A. Superior rectus
2. B. Superior oblique✓
3. C. Inferior oblique
4. D. Lateral rectus

14. Incycloduction is primary action of

1. A. Medial rectus
2. B. Inferior rectus
3. C. Superior oblique✓
4. D. Inferior oblique

15. Contralateral antagonist of Right lateral rectus

1. A. Right medial rectus
2. B. Left medial rectus
3. C. Left lateral rectus✓
4. D. None

Antagonist of Rt lateral rectus is Rt medial rectus, but Contralateral antagonist of Right

lateral rectus is Left lateral rectus

16. Features of paralytic squint

1. A. Diplopia
2. B. False orientation
3. C. Vertigo
4. D. All✓

17. Upward movement of the eye caused by

1. A. Superior rectus
2. B. Inferior oblique
3. C. Both✓
4. D. None

18. _____ is also known as Infraduction

1. A. Depression✓
2. B. Intorsion
3. C. Adduction
4. D. Abduction

Uniocular movements are called ‘ductions’

Other names

• Adduction -medial rotation
• Abduction -lateral rotation
• elevation -Supraduction.
• Depression- Infraduction
• intorsion - Incycloduction
• extorsion - Excycloduction

19. Bielschowsky's head tilt test is used to diagnose which muscle palsy

1. A. Medial rectus
2. B. Superior oblique✓
3. C. Lateral rectus
4. D. None

The Parks–Bielschowsky three-step test, also known as Park's three-step test or

Bielschowsky head tilt test, is a method used to diagnose palsy of superior oblique

muscle and trochlear nerve (IVth cranial nerve)

• Step 1:* Determine which eye is hypertropic in primary position. If there is right hypertropia in primary position, then the depressors of the R eye (IR/SO) or the elevators of the L eye are weak (SR/IO).
• Step 2:* Determine whether the hypertropia increases on right or left gaze. The vertical rectus muscles have their greatest vertical action when the eye is abducted. The oblique muscles have their greatest vertical action when the eye is adducted.
• Step 3:* Determine whether the hypertropia increases on right or left head tilt. During right head tilt, the right eye intorts (SO/SR) and the left eye extorts (IO/IR).

20. In abnormal retinal correspondence (ARC), during worth's 4 dot test, the patient with squint sees _____ dots

1. A. 4✓
2. B. 5
3. C. 3 and 2 alternatively
4. D. None

21. Distance between Superior rectus insertion and limbus

1. A. 5.5mm (MR)
2. B. 6.0mm (IR)
3. C. 7.0mm (LR)
4. D. 7.7mm (SR) ✓

The insertion distance increase clock wise from medial rectus to Superior rectus

22. Movement caused by superior oblique muscle

1. A. Depression
2. B. Intorsion
3. C. Lateral rotation
4. D. All✓

23. Nerve supply of lateral rectus muscle

1. A. 3rd
2. B. 4th
3. C. 6th✓
4. D. 7th

Superior oblique is supplied by 4th cranial nerve, lateral rectus is supplied by 6th cranial

nerve, all other EOMs are supplied by 3rd cranial nerve

24. Which of the following rectus muscle insets closest to the limbus

1. A. Superior rectus
2. B. Inferior rectus
3. C. Medial rectus✓
4. D. Lateral rectus

25. Which of the following muscle insert farthest from the limbus

1. A. Superior rectus
2. B. Inferior rectus
3. C. Superior oblique
4. D. Inferior oblique✓

26. Optic nerve contains

1. a. pigment layer
2. b. ganglion cell layer
3. c. nerve fibre layer✓
4. d. all of the above

27. Ring scotoma is seen in

1. a. papilloedema
2. b. macular oedema
3. c. central retinal artery occlusion
4. d. retinitis pigmentosa✓

28. Candle wax spots in the retina are seen in

1. a. sarcoidosis✓
2. b. toxocara
3. c. syphilis
4. d. cytomegalo inclusion virus

29. The retinoblastoma can present itself as

1. a. amaurotic cat’s eye
2. b. hypopyon with esotropia
3. c. enlargement of the globe
4. d. all of the above✓

30. Visual phototransduction occur in

1. A. Retina✓
2. B. Optic nerve
3. C. Lateral geniculate body
4. D. Visual cortex

31. Fibres originating from the nasal halves of the retina decussate at

1. A. Optic nerve
2. B. Optic tract
3. C. Optic chiasma✓
4. D. Lateral geniculate body

32. After retinal stimulation the visual impulse reaches occipital cortex after

1. a. 1/24 sec
2. b. 24 m sec
3. c. 124 m sec✓
4. d. 142 m sec

33. Retinal detachment may be associated with refractive error

1. a. High Hypermetropia
2. b. High myopia✓
3. c. Astigmatism
4. d. None of the above

34. In CRAO, a cherry red spot is due to:

1. a. Hemorrhage at macula
2. b. Increased choroidal perfusion
3. c. Increase in retinal perfusion at macula
4. d. The contrast between pale retina and reddish choroids✓

35. Which of the following is ideal for evaluating macular functions in a patient whose vision is only hand movement (HM)?

1. a. Color perception✓
2. b. Confrontation test
3. c. Light projection
4. d. Light perception

36. Which of the following is not the blood supply to the optic nerve?

1. a) Short posterior ciliary arteries.
2. b) Central retinal artery.
3. c) Middle meningeal artery.✓
4. d) Anterior cerebral artery.

37. Para sympathetic nerve supply to ciliary ganglion travels along:

1. a) Nerve to inferior oblique.✓
2. b) Nerve to inferior rectus.
3. c) Sympathetic supply to eyeball.
4. d) Nerve of pterygoid canal.

38. Optic nerve contains

1. a. pigment layer
2. b. ganglion cell layer
3. c. nerve fibre layer✓
4. d. all of the above

39. Optic disc is also known as

1. a. macula lutea
2. b. blind spot✓
3. c. foveola
4. d. rods and cones

40. Superior oblique muscle is supplied by the

1. a. optic nerve
2. b. third cranial nerve
3. c. fourth cranial nerve✓
4. d. sixth cranial nerve