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Vision, Eye & Ophthalmology – 50 MCQ Quiz
50 MCQs based on Vision, visual pathway, refractive errors, glaucoma, squint, ptosis, Horner syndrome, lacrimal apparatus and common eye disorders.
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1. The image formed by the optical system of the eye is focused on the:
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Cornea
Lens
Retina
Optic nerve
2. The principal refracting surface of the eye is the:
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Lens
Cornea
Retina
Vitreous
3. The amount of light entering the eye is mainly controlled by the:
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Lens
Retina
Pupil
Cornea
4. Vitamin A deficiency primarily causes difficulty in:
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Colour vision
Night vision
Hearing
Depth perception
5. Accommodation primarily involves change in the shape of the:
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Cornea
Lens
Retina
Pupil
6. The ciliary muscle is mainly responsible for:
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Pupillary dilation
Accommodation
Retinal detachment
Tear drainage
7. Myopia is corrected by a:
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Convex lens
Concave lens
Cylindrical lens only
Prism
8. Hypermetropia is corrected by a:
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Concave lens
Convex lens
Plane lens
Prism
9. Astigmatism is caused by:
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Equal refractive power in all meridians
Unequal refractive power in different meridians
Complete absence of refraction
Retinal detachment
10. The area of retina responsible for the highest visual acuity is the:
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Optic disc
Macula
Ora serrata
Peripheral retina
11. The visual field seen by the temporal retina corresponds mainly to the:
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Temporal visual field
Nasal visual field
Upper visual field
Lower visual field
12. Fibres from the nasal half of the retina cross at the:
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Optic nerve
Optic chiasma
Lateral geniculate body
Optic radiation
13. Fibres from the temporal retina mainly remain:
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Ipsilateral
Contralateral
In the spinal cord
In the cerebellum
14. The optic tract terminates mainly in the:
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Medial geniculate body
Lateral geniculate body
Inferior colliculus
Hippocampus
15. The optic radiations terminate mainly in the:
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Frontal lobe
Occipital visual cortex
Temporal pole
Cerebellum
16. The primary visual cortex corresponds approximately to Brodmann area:
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4
17
41
44
17. The primary visual cortex is located around the:
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Central sulcus
Calcarine sulcus
Lateral sulcus
Parieto-occipital sulcus
18. A lesion of the optic chiasma classically produces:
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Bitemporal hemianopia
Binasal hemianopia
Monocular blindness
Central scotoma only
19. The common intracranial tumour causing bitemporal hemianopia is:
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Pituitary adenoma
Cerebellar tumour
Meningioma of falx
Medulloblastoma
20. Macular sparing in occipital cortical lesions is explained mainly by:
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Dual blood supply of the macular cortex
Absence of macular fibres
Optic nerve regeneration
Extraocular muscle protection
21. The main arterial supply of the occipital visual cortex is from the:
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Middle cerebral artery
Posterior cerebral artery
Anterior cerebral artery
Basilar artery directly
22. The medial geniculate body is primarily associated with:
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Vision
Hearing
Smell
Taste
23. The lateral geniculate body is primarily associated with:
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Hearing
Vision
Balance
Taste
24. The primary auditory cortex is located mainly in Brodmann areas:
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17 and 18
41 and 42
3 and 4
1 and 2
25. The pupillary light reflex is coordinated through the:
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Edinger-Westphal nucleus
Lateral geniculate body
Medial geniculate body
Red nucleus
26. In a normal light reflex, illumination of one eye produces:
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Only direct response
Only consensual response
Both direct and consensual responses
No pupillary response
27. Argyll Robertson pupil classically shows:
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Light-near dissociation
Loss of accommodation
Fixed dilated pupil
Bitemporal hemianopia
28. A classic cause of Argyll Robertson pupil is:
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Tabes dorsalis
Pituitary adenoma
Retinal detachment
Cataract
29. A cataract is an opacity of the:
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Cornea
Lens
Retina
Vitreous
30. Vitreous haemorrhage causes visual loss primarily by:
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Optical media opacity
Optic chiasma compression
Cortical damage
Extraocular muscle paralysis
31. Retinal detachment is a disorder primarily involving the:
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Cornea
Retina
Lens
Optic chiasma
32. A central retinal artery occlusion primarily causes:
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Sudden severe monocular visual loss
Bitemporal hemianopia
Bilateral hearing loss
Diplopia only
33. Glaucoma is primarily associated with damage to the:
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Optic nerve
Lens
Cornea only
Lacrimal gland
34. In open-angle glaucoma, obstruction occurs mainly at the level of the:
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Trabecular meshwork/outflow pathway
Optic chiasma
Lens capsule
Retina
35. A drug used to reduce aqueous humour production is:
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Acetazolamide
Atropine
Tropicamide
Phenylephrine
36. The acute painful red eye with markedly raised intraocular pressure suggests:
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Acute angle-closure glaucoma
Simple conjunctivitis
Cataract
Myopia
37. Pterygium is characterized by growth of conjunctival tissue onto the:
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Cornea
Lens
Retina
Optic nerve
38. A typical symptom of conjunctivitis is:
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Red eye with discharge
Bitemporal hemianopia
Sudden complete blindness
Fixed dilated pupil
39. Tears are mainly secreted by the:
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Lacrimal gland
Lacrimal sac
Nasolacrimal duct
Meibomian gland
40. The nasolacrimal duct drains tears into the:
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Middle meatus
Inferior meatus
Superior meatus
Sphenoethmoidal recess
41. Dacryocystitis refers to infection/inflammation of the:
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Lacrimal sac
Cornea
Lens
Retina
42. The operation that creates a direct communication between the lacrimal sac and nasal cavity is:
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Dacryocystorhinostomy
Trabeculectomy
Keratoplasty
Vitrectomy
43. The muscle that closes the eyelids is:
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Orbicularis oculi
Levator palpebrae superioris
Superior rectus
Müller's muscle
44. The main muscle elevating the upper eyelid is:
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Orbicularis oculi
Levator palpebrae superioris
Superior oblique
Inferior rectus
45. The levator palpebrae superioris is supplied mainly by:
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Facial nerve
Oculomotor nerve
Trigeminal nerve
Abducens nerve
46. Müller's muscle of the upper eyelid receives:
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Sympathetic innervation
Parasympathetic innervation
Somatic sensory innervation
Optic nerve supply
47. Horner syndrome classically includes:
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Ptosis, miosis and anhidrosis
Ptosis, mydriasis and sweating
Proptosis and mydriasis
Diplopia and miosis only
48. Paralysis of orbicularis oculi is most likely to cause:
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Failure of eyelid closure
Ptosis only
Mydriasis only
Bitemporal hemianopia
49. Failure to close the eyelids completely can cause:
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Exposure keratitis
Cataract immediately
Bitemporal hemianopia
Optic chiasma compression
50. Squint is also called:
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Strabismus
Amblyopia
Ptosis
Nystagmus
51. Amblyopia is best described as:
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Reduced vision due to abnormal visual development despite no adequate structural explanation
Raised intraocular pressure
Inflammation of the cornea
Retinal detachment
52. A protruding eyeball is termed:
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Enophthalmos
Proptosis
Ptosis
Nystagmus
53. A common cause of bilateral proptosis is:
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Thyroid eye disease
Cataract
Myopia
Conjunctivitis
54. A yellow-white pupillary reflex in a child is classically associated with:
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Retinoblastoma
Cataract only
Glaucoma
Conjunctivitis
55. Corneal opacity causing severe visual impairment may be treated by:
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Keratoplasty
Trabeculectomy
Dacryocystorhinostomy
Vitrectomy only
56. Unequal pupils after head injury may suggest:
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Intracranial mass effect/herniation
Simple conjunctivitis
Myopia
Astigmatism
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