RRRB Optometrist Previous Year MCQs on Dispensing Optics
Master High-Yield RRB Optometry PYQs & Answer for CBT Success Welcome to Smart Optometry Academy. Perfecting your frame fitting and lens selection knowledge is essential for securing a top rank in the Railway Recruitment Board paramedical examination. This focused set of RRB Optometrist Previous Year MCQs zeroes in on core dispensing optics principles, lens materials, and clinical applications directly mapped to the official syllabus.
Key Clinical Concepts Covered in These RRB PYQs
- Standard lens dimensions and optimal frame fitting centration
- Properties of hypoallergenic frame materials like titanium
- Optical design differences between progressive addition lenses (PALs) and trifocals
- The correlation between a material’s refractive index and lens thickness
- The professional scope and primary functions of a spectacle dispensing clinic
Review each authentic RRB Optometry PYQs & Answer below. Every question includes a concise rationale designed to strengthen your conceptual clarity in presbyopia management and optical physics, prevent negative marking, and boost your CBT performance.
Practice RRB Optometrist Previous Year MCQs on “Dispensing Optics”:
Q-1: What is the primary purpose of spectacles? (RRB Optometrist Previous Year MCQs 2025)
A) To enhance color vision
B) To treat eye infections
C) To protect against UV light
D) To correct refractive errors
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Answer: D) To correct refractive errors
Spectacles alter the vergence of incoming light rays so that the secondary focal point aligns precisely with the sensory retinal plane. By neutralizing spherical and cylindrical refractive errors such as myopia, hyperopia, and astigmatism, they restore sharp, comfortable distance and near visual acuity.
Q-2: Which process manufactures hollow glass objects like bottles and optical containers? (RRB Optometrist Year Question & Answer 2025)
A) Float process
B) Rolling
C) Pressing
D) Blow and blow process
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Answer: D) Blow and blow process
The blow and blow process is an automated glass-forming technique where a molten glass gob is shaped into a preliminary parison and then expanded with compressed air inside a final mold. In industrial and container glass fabrication, this method ensures uniform wall thickness, high tensile strength, and structural integrity.
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Q-3: Which spectacle frame material is lightweight and hypoallergenic? (RRB Optometrist Previous Year MCQs 2025)
A) Metal
B) Wood
C) Plastic
D) Titanium
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Answer: D) Titanium
Titanium is a biocompatible metal that naturally develops an inert surface oxide layer, making it 100% nickel-free, corrosion-resistant, and non-irritating to sensitive skin. Its exceptionally high strength-to-weight ratio allows ophthalmic manufacturers to produce ultra-thin, lightweight frames that offer superior comfort and long-term durability.
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Previous Year MCQs
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Q-4: Which lens corrects vision at three distances? (RRB Optometrist Year Question & Answer 2025)
A) Bifocal lens
B) Monofocal lens
C) Progressive addition lens
D) Trifocal lens
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Answer: D) Trifocal lens
Trifocal spectacle lenses incorporate three distinct, demarcated optical zones dedicated to distance, intermediate (arm’s length/VDU), and near reading ranges. Although they resolve intermediate blur in advanced presbyopes, the visible dividing lines cause discrete steps in optical power and noticeable image jump during gaze shifts.
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Q-5: What is the primary role of a spectacles dispensing shop? (RRB Optometrist Previous Year MCQs 2025)
A) To diagnose eye diseases
B) To prescribe medications
C) To perform eye surgeries
D) To provide and fit corrective lenses
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Answer: D) To provide and fit corrective lenses
An optical dispensing practice specializes in translating ophthalmic prescriptions into properly centered, customized spectacles through accurate pupillary distance and facial fitting measurements. Dispensers ensure precise frame alignment, proper vertex distance, and lens glazing while guiding patients on optical lens selection, ergonomics, and maintenance.
Which lens type suits presbyopia with astigmatism, despite disadvantages? (RRB Optometrist Year Question & Answer 2026)
A) Single vision lenses
B) Bifocal lenses
C) Plano-convex lenses
D) Progressive addition lenses
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Answer: D) Progressive addition lenses
Progressive addition lenses (PALs) provide a seamless, variable-power corridor that simultaneously corrects distance astigmatic errors, intermediate working distances, and near presbyopia without visible dividing segment lines. While functionally and cosmetically superior, they introduce inherent unwanted surface astigmatism in the lateral periphery that demands a brief adaptation period.
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Q-7: What is true about refractive index in lens materials? (RRB Optometrist Previous Year MCQs 2021)
A) No thickness impact
B) Higher index enables thinner lenses
C) Low index increases thinness
D) High-index lenses are heavier
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Answer: B) Higher index enables thinner lenses
Materials with higher refractive indices bend light rays more effectively, requiring flatter surface curvatures to deliver a specified dioptric prescription power. As a result, high-index polymers significantly reduce edge thickness in high-minus lenses and center thickness in high-plus lenses, yielding slimmer and more aesthetic profiles.
Q-8: What characterizes bifocal lenses? (RRB Optometrist PYQs 2021)
A) Color correction
B) Reading-only use
C) Single-vision design
D) Dual focal lengths
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Answer: D) Dual focal lengths
Bifocal lenses feature two distinct optical zones with different focal lengths: a major distance carrier lens and an incorporated near reading segment. This dual-focus system offers an accessible, stable optical solution for presbyopic individuals, although it lacks an intermediate focal zone for intermediate computer distances.
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Q-11: [Paste Your Question Here]
A) Option 1
B) Option 2
C) Correct Option
D) Option 4
Explanation: [Paste your detailed explanation here so Google can index it.]
Q-12: [Paste Your Question Here]
A) Option 1
B) Correct Option
C) Option 3
D) Option 4
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RRB Optometrist 2026
Complete Previous Year MCQs (All Subjects Solved)
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
Theory Notes
Build your foundation with subject-wise clinical & optical theory.
Premium Lectures
Deepen understanding with fundamental optometry video lectures.
Subject-wise MCQs
Test accuracy and speed by practicing topic-specific question banks.
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.



