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📋 DSSSB Optometrist 2026 · Post Code 09/26
📄 2019 Paper
DSSSB Optometrist
Previous Year Paper 2019
Part 4 — Q61 to Q80
20 actual questions from DSSSB Optometrist 2019 covering Retinoscopy, Diabetic Retinopathy, Retinal Detachment, 3rd Nerve Palsy, OCT, LogMAR, Strabismus, Eye Bank, Vision 2020, Slit-Lamp & Community Ophthalmology — click any option to reveal the answer instantly.
📅 Exam Year: 2019
❓ Questions: Q61–Q80
📌 Vacancies 2026: 15 Posts
⏰ Last Date: 28 Mar 2026
This blog contains questions Q61 to Q80 from the DSSSB Optometrist Previous Year Question 2019 with correct answers and detailed explanations. Topics covered: Retinoscopy essentials, Diabetic Macular Edema, Retinal Detachment layers, 3rd Nerve Palsy vs Myasthenia Gravis, Neonatal Conjunctivitis, Suture types, Cataract surgery contraindications, LogMAR scale, OCT imaging, Double Maddox Rod, Prism Cover Test, Hand Hygiene, Low Vision classification, Global Blindness causes, Eye Care Camp Teams, Vision 2020 launch, Eye Bank functions, and Slit-Lamp limitations.
How to use: Click your chosen option → the correct answer and full explanation appear immediately. Track your score with the floating card (drag anywhere on screen).
📑 Questions in This Part (Q61–Q76)
Q61 — Most Important Prerequisite for Retinoscopy
Q62 — Most Common Cause of Vision Loss in DR
Q63 — Fluid Accumulation in Retinal Detachment
Q64 — NOT a Sign of 3rd Nerve Palsy
Q65 — NOT a Cause of Neonatal Conjunctivitis
Q66 — NOT an Absorbable Suture
Q67 — Cataract Surgery Contraindicated
Q68 — 6/6 in LogMAR
Q69 — Non-Invasive Retinal Layer Imaging
Q70 — Double Maddox Test Measures
Q71 — Prism in Esodeviation (PBCT)
Q72 — Cover Test Confirms
Q73 — Minimum Handwashing Duration
Q74 — OCT — NOT Correct
Q75 — NOT Classified as Low Vision
Q76 — Most Common Cause of Blindness Globally
Q77 — Eye Camp Medical Team (Reach-Out)
Q78 — Vision 2020 Launched By
Q79 — NOT a Function of Eye Bank
Q80 — Slit-Lamp Cannot Examine Without Aid
Q-61
The most important prerequisite for retinoscopy is: (DSSSB Optometrist Previous Year Question Paper)
DSSSB Optometrist 2019 — Clinical Refraction👆 Click an option to check your answer
✓ Correct Answer: A. Retinoscope
Retinoscopy is an objective technique for determining refractive error by observing the movement of the red reflex from the patient’s retina. The retinoscope is the absolute, indispensable instrument — it projects a streak of light into the eye and allows the examiner to observe the direction and speed of the reflex movement. No other instrument can substitute it for performing retinoscopy. Snellen’s chart is used for subjective acuity testing, not retinoscopy.
Q-62
Which is the most common cause of diminished vision in diabetic retinopathy? (DSSSB Optometrist Previous Year Question Paper)
DSSSB Optometrist 2019 — Ocular Diseases👆 Click an option to check your answer
✓ Correct Answer: B. Macular edema
Diabetic Macular Edema (DME) is the leading cause of moderate-to-severe vision loss in diabetic retinopathy. Breakdown of the blood-retinal barrier causes fluid and lipid exudates to leak directly into the macula, disrupting central photoreceptor function. Microaneurysms and retinal hemorrhages are classic early signs but often in the peripheral retina — they do not directly affect central vision unless they occur near the fovea. Retinal detachment is a late, serious complication but less common.
Q-63
Fluid accumulates between which layers in retinal detachment? (DSSSB Optometrist Previous Year Question Paper)
DSSSB Optometrist 2019 — Ocular Diseases / Anatomy👆 Click an option to check your answer
✓ Correct Answer: D
Retinal detachment occurs when subretinal fluid (SRF) accumulates in the potential space between the neurosensory retina and the RPE. This separates the photoreceptor outer segments from the RPE which normally provides metabolic support, oxygen, and removes photoproducts. Without this contact → rapid photoreceptor degeneration and irreversible vision loss if not treated promptly. Note: the embryological origin of this space is the optic cup lumen — the neurosensory retina and RPE are only loosely attached by interdigitation, not tight junctions.
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Q-64
Which of the following is NOT a sign of 3rd nerve palsy? (DSSSB Optometrist Previous Year Question Paper)
DSSSB Optometrist 2019 — Ocular Motility / Neuro-Ophthalmology👆 Click an option to check your answer
✓ Correct Answer: C
Ptosis that worsens in the evening is a classic sign of Myasthenia Gravis (fatigable ptosis — worsens with sustained use), NOT 3rd nerve palsy. Signs of 3rd CN palsy: Complete ptosis (CN III supplies levator palpebrae), Ipsilateral mydriasis (pupil-involving CN III palsy due to pupil constrictor fibres on the outer surface of the nerve — compressed by posterior communicating artery aneurysm), Defective accommodation (ciliary muscle supplied by CN III), and eye deviated “down and out” (superior oblique + lateral rectus remain intact).
Q-65
Which of the following is NOT a cause of neonatal conjunctivitis (ophthalmia neonatorum)? (DSSSB Optometry MCQs with Answers)
DSSSB Optometrist 2019 — Ocular Diseases / Community Optometry👆 Click an option to check your answer
✓ Correct Answer: D. H. influenzae
H. influenzae is a common cause of bacterial conjunctivitis in toddlers and preschool children (not neonates). Causes of neonatal conjunctivitis (within first 28 days): Day 1–2: Chemical (silver nitrate prophylaxis). Day 2–5: N. gonorrhoeae (hyperacute purulent, corneal perforation risk — transmitted via infected birth canal). Day 5–14: C. trachomatis (most common in developed countries). S. pyogenes can cause neonatal conjunctivitis in rare cases. H. influenzae is a paediatric, not neonatal, pathogen.
Q-66
Which of the following is NOT an example of an absorbable suture? (DSSSB Optometry MCQs with Answers)
DSSSB Optometrist 2019 — Ophthalmic Surgery👆 Click an option to check your answer
✓ Correct Answer: C. Virgin silk
Virgin silk is NON-ABSORBABLE — a natural protein filament from silkworms classified as a permanent suture material. Absorbable sutures: Plain catgut (absorbed in 10–14 days via enzymatic digestion), Chromic catgut (treated with chromic salts → slower absorption, 21–28 days), Vicryl/polyglactin 910 (hydrolytic absorption over 56–70 days). Non-absorbable sutures: Virgin silk, Nylon (Prolene), Polypropylene, Dacron, Stainless steel. In ophthalmology: 10-0 nylon is the standard for corneal sutures.
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Q-67
In which condition is cataract surgery contraindicated? (DSSSB Optometry MCQs with Answers)
DSSSB Optometrist 2019 — Ophthalmic Surgery👆 Click an option to check your answer
✓ Correct Answer: C. BP of 180/100 mmHg
BP 180/100 mmHg = hypertensive crisis → absolute contraindication for elective intraocular surgery. Risks: suprachoroidal hemorrhage (expulsive), intraoperative cardiovascular events, and anaesthesia complications. History of MI 12 months back: elective surgery is generally avoided within 6 months of MI, but 12 months back with cardiology clearance is acceptable. Corneal opacity and myopia may actually be indications (not contraindications) for surgery — triple procedure for corneal opacity, or refractive lens exchange for high myopia.
Q-68
Which of the following is equivalent to 6/6 in LogMAR? (DSSSB Optometrist Solved Papers PDF)
DSSSB Optometrist 2019 — Visual Acuity / Optics👆 Click an option to check your answer
✓ Correct Answer: D. 0.0
LogMAR = log₁₀(MAR). For 6/6 (20/20): MAR = 1 arcminute → LogMAR = log₁₀(1) = 0.0. Key LogMAR values: 6/6 = 0.0 · 6/9 = 0.18 · 6/12 = 0.3 · 6/18 = 0.48 · 6/24 = 0.6 · 6/36 = 0.78 · 6/60 = 1.0 · CF (counting fingers) = 1.3–1.9. LogMAR is used in clinical research (ETDRS chart) because it is a linear scale unlike Snellen fractions. Higher LogMAR = worse vision.
Q-69
Which imaging technique is non-invasive and used to study different layers of the retina? (DSSSB Optometrist Solved Papers PDF)
DSSSB Optometrist 2019 — Ophthalmic Instrumentation👆 Click an option to check your answer
✓ Correct Answer: D. OCT
OCT uses low-coherence interferometry with near-infrared light to create high-resolution cross-sectional (tomographic) images of the retinal layers in vivo — completely non-invasive, no dyes, no radiation. Gold standard for: macular pathology (AMD, DME, ERM), glaucoma (NFL thickness), retinal detachment, and choroidal imaging. Fluorescein angiography requires IV dye injection (invasive). Pachymetry measures corneal thickness. Fundus photography provides 2D surface images only — not layer-by-layer sectioning.
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Q-70
The Double Maddox Rod test is done to measure: (DSSSB Optometrist Solved Papers PDF)
DSSSB Optometrist 2019 — Binocular Vision / Strabismus👆 Click an option to check your answer
✓ Correct Answer: C. Cyclodeviation
The Double Maddox Rod (DMR) test is the standard clinical test for detecting and measuring cyclodeviation (torsion). A red Maddox rod is placed before one eye, white before the other. Each rod converts a point light source into a line image. If the two lines are tilted relative to each other, the patient rotates the rods until parallel — the degree of rotation = cyclotorsion. Incyclotorsion = top of eye rotates nasally. Excyclotorsion = top rotates temporally. Useful in superior oblique palsy (CN IV), where excyclotorsion is typically seen.
Q-71
In case of esodeviation during Prism Bar Cover Test (PBCT), the base is placed: (DSSSB Optometrist 2026 preparation)
DSSSB Optometrist 2019 — Binocular Vision / Strabismus👆 Click an option to check your answer
✓ Correct Answer: D. Base out
To neutralise an esodeviation (eye deviated inward/nasally), a prism with base out (base toward the temporal side) is placed before the deviating eye. The prism displaces the image toward the apex → effectively shifts the image to where the deviated eye is pointed. Prism convention: Esodeviation → Base out · Exodeviation → Base in · Hyperdeviation → Base down (before hypertropic eye). In PBCT, prisms are increased until no refixation movement is observed = neutralisation point = angle of deviation.
Q-72
Cover test is done to confirm the presence of: (DSSSB Optometrist 2026 preparation)
DSSSB Optometrist 2019 — Binocular Vision / Strabismus👆 Click an option to check your answer
✓ Correct Answer: B. Heterotropia
The cover-uncover test confirms the presence of a manifest strabismus (heterotropia). When the fixating eye is covered, the deviated eye makes a visible corrective movement to take up fixation → confirms manifest misalignment. Heterophoria is diagnosed using the alternating cover test (AC test) — phoria is only present under dissociation and not manifest. Amblyopia is diagnosed by best-corrected visual acuity testing. The cover test is the most fundamental clinical test in orthoptic assessment.
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Q-73
Hand washing should be done for a minimum time of: (DSSSB Optometrist 2026 preparation)
DSSSB Optometrist 2019 — Community Optometry / Infection Control👆 Click an option to check your answer
✓ Correct Answer: D. 40 seconds
The WHO recommends handwashing with soap and water for a minimum of 40–60 seconds. The 6-step WHO hand hygiene technique covers all surfaces: palm to palm, interlaced fingers, back of hands, thumbs, fingertips, and wrists. For alcohol-based hand rub: minimum 20–30 seconds. The “My 5 Moments for Hand Hygiene” are: before touching patient, before aseptic procedures, after body fluid exposure, after touching patient, after touching patient surroundings. Hand hygiene is the single most important measure to prevent healthcare-associated infections.
Q-74
Which one of the following is NOT correct regarding OCT? (DSSSB Optometrist 2026 preparation)
DSSSB Optometrist 2019 — Ophthalmic Instrumentation👆 Click an option to check your answer
✓ Correct Answer: C
Option C is FALSE. OCT uses safe near-infrared light — no radiation, no dye injection, no exertion. Bronchial asthma has absolutely no bearing on OCT eligibility. Any patient who can sit at the slit lamp and keep their eye open can have an OCT. Options A, B, D are ALL TRUE: OCT provides micron-level resolution cross-sectional retinal imaging (A), is completely non-invasive in-vivo (B), and is the standard tool for monitoring anti-VEGF therapy response in AMD and DME, as well as glaucoma progression (D).
Q-75
Which of the following CANNOT be categorised as low vision? (DSSSB optometry MCQs with answers PDF)
DSSSB Optometrist 2019 — Low Vision / Community Optometry👆 Click an option to check your answer
✓ Correct Answer: C. Less than 3/60
VA <3/60 crosses into blindness (profound visual impairment) — NOT low vision. WHO Visual Impairment Classification: Mild impairment: <6/18 to 6/60 (Option A). Moderate impairment: <6/60 to 3/60 (Option B). Severe/Blind: <3/60 — Option C (NOT low vision). Low Vision = Best corrected VA <6/18 but light perception present, OR visual field <10° around fixation. VA >6/18 = normal. Remember: Low vision patients can still be rehabilitated with optical aids, unlike those who are completely blind.
Q-76
The most common cause of blindness globally is: (DSSSB optometry MCQs with answers PDF)
DSSSB Optometrist 2019 — Community Optometry / Public Health👆 Click an option to check your answer
✓ Correct Answer: A. Cataract
Cataract remains the most common cause of blindness globally (~33%), despite being treatable and reversible with surgery. The paradox exists due to barriers to surgical access in developing nations (cost, infrastructure, trained surgeons). Global blindness causes in order: ① Cataract ② Uncorrected refractive error ③ Glaucoma ④ AMD ⑤ Corneal opacity ⑥ Diabetic retinopathy ⑦ Trachoma. Note: In India specifically, cataract is also the #1 cause of blindness. Refractive error is the leading cause of visual impairment (not blindness).
Q-77
In comprehensive eye care camps with the reach-out approach, the medical team comprises of: (DSSSB Optometrist 2019 solved paper)
DSSSB Optometrist 2019 — Community Optometry / Public Health👆 Click an option to check your answer
✓ Correct Answer: A
Under the National Blindness Control Programme’s Reach-Out Approach for comprehensive eye care camps, the standard compact operating team consists of: 1 Resident Doctor + 2 Nurses + 2 OT Assistants + 2 Paramedical Personnel. This configuration (1+2+2+2) ensures full surgical capability for cataract operations with adequate nursing and screening support while remaining logistically viable for deployment to remote or underserved areas. This exact composition is a recurring exam fact in community ophthalmology questions.
Q-78
Vision 2020: The Right to Sight is a global initiative launched by: (DSSSB Optometrist 2019 solved paper)
DSSSB Optometrist 2019 — Community Optometry / Public Health👆 Click an option to check your answer
✓ Correct Answer: D. WHO and IAPB jointly
Vision 2020: The Right to Sight was launched in 1999 as a joint global initiative by WHO (World Health Organization) and IAPB (International Agency for the Prevention of Blindness). Its goal: eliminate the main causes of avoidable blindness by the year 2020. Priority diseases: Cataract, Trachoma, Onchocerciasis, Childhood blindness, Refractive errors & low vision. Note: Option A (WHO alone) is a common exam trap — the correct answer specifically requires both WHO and IAPB as co-founders. ORBIS is a separate NGO focused on aircraft-based ophthalmic training.
Q-79
Which of the following is NOT a function of an eye bank? (DSSSB Optometrist 2019 solved paper)
DSSSB Optometrist 2019 — Community Optometry / Eye Banking👆 Click an option to check your answer
✓ Correct Answer: B. Doing research on medicines
Pharmacological / drug research is NOT a function of an eye bank — it belongs to research institutes and pharmaceutical companies. Functions of an eye bank: ① Registration of eye pledgers and donor family counselling ② Procurement of donor corneas (within 6 hours of death) ③ Medical evaluation of donor tissue (slit-lamp, specular microscopy, serology screening) ④ Processing and storage of corneal tissue (Moist chamber / McCarey-Kaufman / Optisol medium) ⑤ Equitable distribution to corneal surgeons ⑥ Promotion of eye donation awareness. In India, the National Eye Bank is at AIIMS, New Delhi.
Q-80
Which structure CANNOT be examined with a slit-lamp without an additional aid? (DSSSB Optometrist 2019 solved paper)
DSSSB Optometrist 2019 — Ophthalmic Instrumentation👆 Click an option to check your answer
✓ Correct Answer: D. Macula
A standard slit-lamp biomicroscope is designed to examine the anterior segment — it focuses directly on the cornea, anterior chamber (cells & flare), iris, pupil, and crystalline lens without any additional lens. The macula and posterior segment require an additional optical aid to negate the eye’s converging power and bring the retina into focus. Additional aids for posterior segment slit-lamp examination: 90D or 78D condensing lens (non-contact), Volk superfield lens, or a Goldmann 3-mirror contact lens. Without these, the slit-lamp beam diverges before reaching the retina and cannot form a focusable image.
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❓ Frequently Asked Questions
What is the most common cause of vision loss in diabetic retinopathy? ▼
Diabetic Macular Edema (DME) is the most common cause of moderate-to-severe vision loss in diabetic retinopathy. Leakage of fluid and lipid exudates into the macula disrupts central photoreceptor function. Microaneurysms and peripheral hemorrhages don’t directly impact central acuity unless near the fovea.
What is 6/6 vision in LogMAR? ▼
6/6 = 0.0 LogMAR. LogMAR = log₁₀(MAR). For 6/6, MAR = 1 arcminute, log₁₀(1) = 0. Key values: 6/60 = 1.0, 6/6 = 0.0. Higher LogMAR = poorer vision. LogMAR is used in research (ETDRS) because it is a linear scale.
How does a cover test differ from an alternating cover test? ▼
The cover-uncover test confirms heterotropia (manifest strabismus) — the deviated eye makes a corrective movement when the fixating eye is covered. The alternating cover test detects heterophoria (latent deviation) by fully dissociating binocular fusion, revealing a phoria that is only present under dissociation.
What is the most common cause of blindness in India and globally? ▼
Cataract is the most common cause of blindness both in India and globally (~33% of all blindness worldwide). It is treatable and reversible with surgery, but remains #1 due to barriers to surgical access in developing nations. Uncorrected refractive error is the leading cause of visual impairment (not blindness).
Who launched Vision 2020: The Right to Sight? ▼
Vision 2020 was launched in 1999 as a joint initiative by WHO and IAPB (International Agency for the Prevention of Blindness) — both organisations together, not WHO alone. Goal: eliminate avoidable blindness by 2020. Priority conditions: Cataract, Trachoma, Onchocerciasis, Childhood blindness, and Refractive errors.
What are the functions of an eye bank? ▼
Eye bank functions: ① Registration of eye pledgers ② Procurement of donor corneas ③ Medical evaluation and serology screening ④ Processing and storage in preservation medium ⑤ Equitable distribution to surgeons ⑥ Promotion of donation awareness. NOT a function: pharmacological research on medicines.
