Strengthen your ophthalmology concepts with 40 advanced Visual Pathway MCQs (Batch 2: Q41–80) covering the optic nerve, optic chiasma, LGN, optic radiations, and visual cortex. Ideal for NEET PG, INI-CET, AIIMS, and FMGE aspirants, this quiz helps you master visual field defects, optic neuritis, cortical blindness, macular sparing, and quadrantanopia. Practice now on MCQ Zone – Your Ultimate Ophthalmology mcq Hub. visit our index page to find topic wise ophthalmology mcq.

Optic Nerve – Details

41. Total number of fibres in optic nerve:
A. 0.5 million
B. 1.2 million
C. 2 million
D. 0.8 million

View Answer

B. 1.2 million ✅ Exp: Optic nerve has ~1.2 million axons.

42. Blood supply of optic nerve head is mainly from:
A. Central retinal artery
B. Short posterior ciliary arteries
C. Long ciliary arteries
D. Angular artery

View Answer

B. Short posterior ciliary arteries ✅ Exp: Optic disc supplied by SPCAs.

43. Macular fibres occupy which part of optic nerve?
A. Central
B. Peripheral
C. Superior
D. Inferior

View Answer

A. Central ✅ Exp: Macular fibres lie in centre.

44. Optic nerve sheaths are direct extensions of:
A. Orbit fascia
B. Cranial meninges
C. Sclera
D. Periorbita

View Answer

B. Cranial meninges ✅ Exp: Dura, arachnoid, pia continue around nerve.

45. Which part of optic nerve is most vulnerable to raised ICP?
A. Intraorbital
B. Intraocular
C. Intracanalicular
D. Intracranial

View Answer

B. Intraocular ✅ Exp: Optic disc shows papilledema.

Optic Chiasma – Applied

46. A lesion compressing centre of chiasma from below (pituitary tumor) →
A. Bitemporal hemianopia
B. Binasal hemianopia
C. Central scotoma
D. Homonymous hemianopia

View Answer

A. Bitemporal hemianopia ✅ Exp: Affects crossing nasal fibres.

47. A lesion compressing lateral chiasma (aneurysm ICA) →
A. Binasal hemianopia
B. Bitemporal hemianopia
C. Homonymous hemianopia
D. Central scotoma

View Answer

A. Binasal hemianopia ✅ Exp: Affects uncrossed temporal fibres.

48. Wilbrand’s knee is associated with:
A. Optic disc
B. Optic chiasma
C. Optic radiation
D. LGN

View Answer

B. Optic chiasma ✅ Exp: Small bend of inferonasal fibres into contralateral nerve.

49. Junctional scotoma is due to lesion at:
A. Optic nerve-chiasma junction
B. Optic tract
C. LGN
D. Occipital cortex

View Answer

A. Optic nerve-chiasma junction ✅ Exp: Produces monocular + contralateral temporal field defect.

50. Superior chiasmal compression (craniopharyngioma) →
A. Bitemporal hemianopia, worse inferiorly
B. Central scotoma
C. Binasal hemianopia
D. Superior quadrantanopia

View Answer

A. Bitemporal hemianopia, worse inferiorly ✅ Exp: Superior chiasma fibres represent inferior fields.

Optic Tracts & LGN – Applied

51. Each optic tract carries information from:
A. Ipsilateral visual field
B. Contralateral visual field
C. Ipsilateral eye
D. Temporal retina only

View Answer

B. Contralateral visual field ✅ Exp: Each tract represents contralateral visual field.

52. Lesion of left optic tract →
A. Right homonymous hemianopia
B. Left homonymous hemianopia
C. Bitemporal hemianopia
D. Central scotoma

View Answer

A. Right homonymous hemianopia ✅ Exp: Contralateral hemianopia.

53. LGN has how many layers?
A. 4
B. 6
C. 8
D. 10

View Answer

B. 6 ✅ Exp: Six layers in primates.

54. Ipsilateral eye fibres end in LGN layers:
A. 1, 2, 3
B. 4, 5, 6
C. 2, 4, 6
D. 1, 3, 5

View Answer

A. 1, 2, 3 ✅ Exp: Layers 2,3,5 = ipsilateral.

55. Contralateral eye fibres end in LGN layers:
A. 1, 2, 3
B. 4, 5, 6
C. 2, 3, 5
D. 1, 3, 5

View Answer

B. 4, 5, 6 ✅ Exp: Layers 1,4,6 = contralateral.

56. Parvocellular layers of LGN:
A. 1 and 2
B. 3, 4, 5, 6
C. 1 and 6
D. 2 and 3

View Answer

B. 3, 4, 5, 6 ✅ Exp: Small cells = color and detail.

57. Magnocellular layers transmit:
A. Color
B. Motion & gross form
C. Central vision
D. Foveal input

View Answer

B. Motion & gross form ✅ Exp: Layers 1 & 2 detect movement.

58. Lesion of LGN produces:
A. Homonymous hemianopia
B. Binasal defect
C. Central scotoma
D. Monocular blindness

View Answer

A. Homonymous hemianopia ✅ Exp: Contralateral visual field defect.

59. LGN sends fibres via:
A. Corticospinal tract
B. Optic radiations
C. Spinothalamic tract
D. Tectospinal tract

View Answer

B. Optic radiations ✅ Exp: LGN → primary visual cortex.

60. Retinotopic arrangement in LGN means:
A. Random connections
B. Spatial map of retina
C. Crossing only
D. Central scotoma

View Answer

B. Spatial map of retina ✅ Exp: Retinal points map onto LGN.

Optic Radiations – Applied

61. Fibres of inferior retina pass through:
A. Parietal lobe
B. Temporal lobe (Meyer’s loop)
C. Occipital pole
D. Frontal lobe

View Answer

B. Temporal lobe (Meyer’s loop) ✅ Exp: Inferior retina → temporal loop.

62. Fibres of superior retina pass through:
A. Parietal lobe
B. Temporal lobe
C. Occipital pole
D. Frontal lobe

View Answer

A. Parietal lobe ✅ Exp: Superior retina → parietal lobe.

63. Temporal lobe lesion produces:
A. Superior quadrantanopia
B. Inferior quadrantanopia
C. Central scotoma
D. Binasal defect

View Answer

A. Superior quadrantanopia ✅ Exp: “Pie in the sky” defect.

64. Parietal lobe lesion produces:
A. Inferior quadrantanopia
B. Superior quadrantanopia
C. Bitemporal defect
D. Central scotoma

View Answer

A. Inferior quadrantanopia ✅ Exp: “Pie on the floor” defect.

65. Retinotopic mapping in visual cortex:
A. Fovea → occipital pole
B. Periphery → occipital pole
C. Retina → frontal cortex
D. Macula → cerebellum

View Answer

A. Fovea → occipital pole ✅ Exp: Foveal vision at occipital tip.

66. Macular fibres occupy large cortical area due to:
A. Large size of macula
B. Cortical magnification
C. More blood vessels
D. Higher pressure

View Answer

B. Cortical magnification ✅ Exp: Macula has maximum cortical representation.

67. Lesion in upper bank of calcarine sulcus →
A. Inferior quadrantanopia
B. Superior quadrantanopia
C. Bitemporal defect
D. Central scotoma

View Answer

A. Inferior quadrantanopia ✅ Exp: Upper bank = inferior field.

68. Lesion in lower bank of calcarine sulcus →
A. Superior quadrantanopia
B. Inferior quadrantanopia
C. Central scotoma
D. Binasal defect

View Answer

A. Superior quadrantanopia ✅ Exp: Lower bank = superior field.

69. Bilateral occipital lobe lesion →
A. Cortical blindness
B. Central scotoma
C. Tunnel vision
D. Binasal hemianopia

View Answer

A. Cortical blindness ✅ Exp: Destruction of visual cortex.

70. Anton’s syndrome is:
A. Blindness with denial of blindness
B. Blindness with hallucinations
C. Monocular blindness
D. Tunnel vision

View Answer

A. Blindness with denial of blindness ✅ Exp: Cortical blindness + denial.

71. Optic neuritis most often causes:
A. Central scotoma
B. Bitemporal hemianopia
C. Tunnel vision
D. Quadrantanopia

View Answer

A. Central scotoma ✅ Exp: Inflammation damages papillomacular bundle.

72. Glaucoma produces:
A. Arcuate scotoma
B. Bitemporal hemianopia
C. Central scotoma
D. Tunnel vision initially

View Answer

A. Arcuate scotoma ✅ Exp: Damage to arcuate nerve fibres.

73. Tunnel vision is characteristic of:
A. Retinitis pigmentosa
B. Optic neuritis
C. Glaucoma
D. Macular degeneration

View Answer

A. Retinitis pigmentosa ✅ Exp: Peripheral field loss first.

74. Macular sparing hemianopia is due to:
A. Dual blood supply (MCA + PCA)
B. Redundant retinal fibres
C. Pituitary tumor
D. Myopia

View Answer

A. Dual blood supply (MCA + PCA) ✅ Exp: Macula preserved by MCA collaterals.

75. Temporal hemianopia occurs due to:
A. Lesion at optic chiasma
B. Optic tract lesion
C. Cortical lesion
D. Retina

View Answer

A. Lesion at optic chiasma ✅ Exp: Nasal fibres crossing affected.

76. Homonymous superior quadrantanopia is lesion of:
A. Temporal lobe
B. Parietal lobe
C. Chiasma
D. Retina

View Answer

A. Temporal lobe ✅ Exp: Meyer’s loop involvement.

77. Homonymous inferior quadrantanopia is lesion of:
A. Parietal lobe
B. Temporal lobe
C. Occipital pole
D. Chiasma

View Answer

A. Parietal lobe ✅ Exp: Parietal fibres → inferior field.

78. Complete lesion of optic nerve leads to:
A. Monocular blindness
B. Bitemporal hemianopia
C. Homonymous hemianopia
D. Quadrantanopia

View Answer

A. Monocular blindness ✅ Exp: Whole eye affected.

79. Lesion at occipital pole →
A. Macular vision loss
B. Peripheral vision loss
C. Binasal hemianopia
D. Central scotoma

View Answer

A. Macular vision loss ✅ Exp: Occipital pole represents macula.

80. Lesion sparing occipital pole →
A. Macular sparing
B. Central scotoma
C. Monocular blindness
D. Arcuate scotoma

View Answer

A. Macular sparing ✅ Exp: Occipital tip spared → macula intact.

You’ve just explored 40 high-yield Visual Pathway MCQs that test your understanding from the optic nerve to the occipital cortex. Each question strengthens your knowledge of visual field defects, neuroanatomy correlations, and clinical applications crucial for ophthalmology exams.

Don’t stop here — dive into the next set of Ophthalmology MCQ to continue sharpening your concepts and stay ahead in your NEET PG, INI-CET, or AIIMS prep journey.