RRB Optometrist 2026: 21 Ocular Anatomy MCQs – Layers, Chambers & Blood Supply

RRB Optometrist Previous Year MCQs on Ocular Anatomy

Master High-Yield RRB Optometry PYQs & Answer for CBT Success Welcome to Smart Optometry Academy. A precise understanding of ocular and orbital anatomy is essential for securing a top rank in the Railway Recruitment Board paramedical examination. This focused collection of RRB Optometrist Previous Year MCQs zeroes in on the structural framework of the eye, directly mapped to the official syllabus.

Key Clinical Concepts Covered in These RRB PYQs

  • Anteroposterior eyeball growth milestones from birth to childhood
  • Structural dimensions of the cornea and the regenerative properties of Descemet’s membrane
  • Efficiency of hexagonal endothelial cells in maintaining the corneal barrier
  • Anatomy of the ciliary body and the choroidal blood supply
  • Osteology of the orbit, including the 7 composing bones, the delicate lamina papyracea, and the inferior orbital fissure
  • Mechanisms of enophthalmos in orbital floor blowout fractures
  • Cranial nerve III (Oculomotor) innervation of extraocular muscles

Review each authentic RRB Optometry PYQs & Answer below. Every question includes a concise clinical rationale designed to strengthen your anatomical knowledge, prevent negative marking, and boost your overall CBT performance.

Practice RRB Optometrist Previous Year MCQs on “Ocular Anatomy”:

Q-1: Ante-posterior length of the eyeball at birth is 17.3 mm. What is the size of the eyeball at 7 to 8 years? (RRB Optometrist Previous Year MCQs 2019)

A) 23 mm
B) 24 mm
C) 23.5 mm
D) 24.5 mm

Click “Show more” to see the answer and explanation.

Q-2: Which has the smallest diameter with respect to the cornea? (RRB Optometrist Year Question & Answer 2019)


A) Anterior horizontal diameter
B) Posterior horizontal diameter
C) Anterior vertical diameter
D) Posterior vertical diameter

Click “Show more” to see the answer and explanation.

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Q-3: A strong membrane that helps in regeneration after injury is: (RRB Optometrist Previous Year MCQs 2019)


A) Epiretinal membrane
B) Descemet’s membrane
C) Bowman’s membrane
D) Conjunctiva membrane

Click “Show more” to see the answer and explanation.

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Q-4: All of the following are true about choroids except: (RRB Optometrist Year Question & Answer 2019)


A) 10 numbers of short posterior ciliary arteries
B) 2 numbers of long posterior ciliary arteries
C) 7 numbers of anterior ciliary arteries
D) 4 numbers of long posterior ciliary arteries

Click “Show more” to see the answer and explanation.

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Q-5: How many lamellae are distributed throughout the stroma and lie parallel to the corneal surface? (RRB Optometrist Previous Year MCQs 2019)


A) 400-500
B) 200-300
C) 300-400
D) 100-200

Click “Show more” to see the answer and explanation.

Q-6: Which cranial nerve controls eye movement? (RRB Optometrist Year Question & Answer 2025)


A) Trigeminal (V)
B) Facial (VII)
C) Oculomotor (III)
D) Optic (II)

Click “Show more” to see the answer and explanation.

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Q-7: Which structure is key to aqueous humor outflow in glaucoma? (RRB Optometrist Previous Year MCQs 2025)


A) Vitreous body
B) Zonules of Zinn
C) Iris root
D) Schlemm’s canal

Click “Show more” to see the answer and explanation.

Q-8: What most commonly causes enophthalmos in orbital fractures? (RRB Optometrist PYQs 2025)


A) Zygomatic arch fracture
B) Medial wall fracture with muscle entrapment
C) Superior orbital fissure syndrome
D) Orbital floor fracture with fat herniation

Click “Show more” to see the answer and explanation.

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Q-9: A 4-month-old infant presents with congenital ptosis and absent superior levator muscle function. What is the likely cause? (RRB Optometrist Previous Year MCQs 2025)


A) Marcus Gunn jaw-winking syndrome
B) Congenital Horner’s syndrome
C) Blepharophimosis syndrome
D) Congenital aponeurotic ptosis

Click “Show more” to see the answer and explanation.

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Q-10: The orbital plate of the ethmoid is called _______. (RRB Optometrist PYQs 2019)


A) Lamina propria
B) Lamina terminalis
C) Orbital lamina
D) Lamina papyracea

Click “Show more” to see the answer and explanation.

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RRB Optometrist 2026 PYQs RRB Optometrist CBT Course Promo
Target RRB Optometrist CBT 2026

Master Your Govt Job Preparation

Join our most successful flagship course on the Optometry Notes & MCQs App. Follow our proven 4-step sequence to crack the Railway Recruitment Board CBT exam.

Our Proven Success Sequence

1
📚

Theory Notes

Build your foundation with subject-wise clinical & optical theory.

2
🎥

Premium Lectures

Deepen understanding with fundamental optometry video lectures.

3
📝

Subject-wise MCQs

Test accuracy and speed by practicing topic-specific question banks.

4
🏆

Previous Year MCQs

Master actual CBT exam patterns with completely solved PYQs.

The RRB Optometrist recruitment conducted under the Ministry of Railways offers a prime opportunity for eye care professionals targeting a secure RRB Optometry Govt Job. Candidates preparing for an upcoming RRB Optometrist Vacancy can review the standardized eligibility norms, pay scale, and exam structure below to streamline their preparation for this sought-after RRB Optometrist govt job.

Key Job Parameters

  • Post Title: Optometrist.
  • Pay Scale: Level 4 of the 7th CPC Pay Matrix, featuring an initial basic pay of ₹25,500 plus applicable allowances.
  • Educational Qualification: B.Sc in Optometry or a Diploma in Ophthalmic Technique/Technician (with a course duration of 3 to 4 years) from a recognized university or institution, along with valid registration with the relevant Council or Licensing body.
  • Age Limit: 18 to 33/36 years, with standard category-based upper age relaxations applicable for OBC, SC, ST, PwBD, and Ex-Servicemen.
  • Medical Fitness Standard: B-1 Standard, which requires sound distance and near vision along with intact colour, binocular, night, and mesopic vision. Candidates who have undergone LASIK or any other refractive surgery are not eligible for posts with the B-1 medical standard.

CBT Examination Pattern & Scheme The selection process consists of a Single-Stage Computer Based Test (CBT), followed by Document Verification (DV) and the Railway Medical Examination.

  • Exam Duration and Structure: The CBT lasts for 90 minutes (120 minutes for eligible PwBD candidates using a scribe) and consists of 100 objective-type multiple-choice questions (MCQs) for a total of 100 marks.
  • Marking Scheme: Each correct response earns 1 mark, with a strict negative marking deduction of 1/3 mark for every incorrect answer.
  • Professional Ability (70 Marks): This core technical segment consists of 70 questions and tests optometry domains such as Physical & Visual Optics, Ocular Anatomy & Physiology, Refraction, Contact Lenses, Binocular Vision, Dispensing Optics, Optometric Instruments, and Ocular Pathology.
  • General Awareness (10 Marks): Comprises 10 questions covering current affairs, history, polity, and related topics.
  • General Arithmetic, Intelligence & Reasoning (10 Marks): Comprises 10 questions testing quantitative and analytical aptitude.
  • General Science (10 Marks): Comprises 10 questions covering basic Physics, Chemistry, and Life Sciences.

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