Topic Study Guide

Pediatric Ophthalmology MCQs & Guide

300+ questions with detailed explanations. Master pediatric ophthalmology for FRCOphth, ICO, FAICO, DNB and NEET-SS.

Pediatric Ophthalmology overview

Paediatric ophthalmology and strabismus is a high-stakes subspecialty — early diagnosis prevents irreversible amblyopia and developmental delay. Questions span amblyopia, strabismus, ROP, congenital cataract and glaucoma.

Clinical & exam importance

Paeds accounts for 8–10% of most exams. NEET-SS paediatric/strabismus fellowship is one of the most competitive sub-specialty seats. FAICO paeds depth is significant.

At a glance

MCQ bank
300+
Glossary terms
14+
Free sample MCQs
3
Matched products
2
Practice Pediatric Ophthalmology MCQs

Core anatomy & physiology refresher

The foundations you need before tackling clinical and surgical MCQs.

  • Visual development: VEP-measurable from birth, adult acuity by 6–8 years.
  • Critical period for amblyopia: birth to 7–8 years; plastic to 12 years for some treatments.
  • Axial length at birth ~17 mm, reaches adult length (~23 mm) by age 13.
  • Corneal diameter at birth 10 mm; adult 11.7 mm.
  • IOL power changes with axial growth — adjustments required for pediatric IOLs.

High-yield pediatric ophthalmology facts for MCQs

The facts that appear most often in real exam stems. Learn them cold.

  • 1
    Amblyopia types: strabismic, anisometropic (≥1.5 D), deprivational (worst), bilateral ametropic.
  • 2
    Treatment of amblyopia: refractive correction first, then occlusion or atropine penalisation.
  • 3
    Esotropia: infantile (large angle, onset <6 months), accommodative (refractive), partially accommodative.
  • 4
    Exotropia: intermittent (most common), constant, sensory.
  • 5
    Inferior oblique overaction: V-pattern strabismus; treat with IO weakening procedures.
  • 6
    Brown syndrome: limited elevation in adduction; congenital (tight superior oblique tendon) or acquired (trauma, inflammation).
  • 7
    Duane retraction syndrome: type I (limited abduction), type II (limited adduction), type III (both); CN VI nucleus abnormality with aberrant CN III innervation.
  • 8
    Leukocoria differential: retinoblastoma, congenital cataract, Coats disease, PHPV, ROP, toxocariasis.
  • 9
    Retinoblastoma: most common intraocular malignancy of childhood; RB1 gene on 13q14.
  • 10
    Group A–E retinoblastoma (International Classification); E carries highest enucleation rate.
  • 11
    ROP screening: birth weight ≤1500 g or gestational age ≤30 weeks; first screen at 31 weeks PMA or 4 weeks chronological.
  • 12
    ROP zones (I innermost, III outermost), stages (1–5), plus disease and aggressive posterior ROP.
  • 13
    Treatment threshold: Type 1 ROP (any zone I stage 3, zone I plus, zone II stage 2 or 3 plus).
  • 14
    Congenital glaucoma triad: epiphora, photophobia, blepharospasm.
  • 15
    Goniotomy and trabeculotomy are first-line surgeries for primary congenital glaucoma.

Related pediatric ophthalmology glossary terms

Exam-ready definitions filtered by subspecialty.

Browse full 316-term glossary
Amblyopia
Reduction in best-corrected visual acuity from abnormal visual development during the sensitive period; causes include strabismus, anisometropia, and deprivation.
Cover Test
Clinical test for ocular alignment distinguishing tropias from phorias using monocular and alternate covering.
Duane Syndrome
Congenital aberrant innervation of the lateral rectus by CN III causing limited abduction and globe retraction on adduction.
Epicanthus
Vertical skinfold over the medial canthus; common in children and can mimic esotropia (pseudostrabismus).
Esotropia
Manifest convergent strabismus; types include accommodative, infantile, sensory, and consecutive.
Exotropia
Manifest divergent strabismus; intermittent exotropia is the commonest paediatric form.
Krimsky Test
Prism-based measurement of strabismus angle by centring corneal light reflexes.
Leukocoria
White pupillary reflex; in a child must exclude retinoblastoma, Coats disease, congenital cataract, PFV, and toxocariasis.
Strabismus
Ocular misalignment; concomitant or incomitant, paralytic or restrictive.
Worth 4-Dot Test
Red-green filter test assessing sensory binocular status: fusion, suppression, or diplopia.
Brown Syndrome
Mechanical restriction of the superior oblique tendon limiting elevation in adduction with positive forced duction.
Hering’s Law
Principle that yoke muscles in both eyes receive equal and simultaneous innervation, producing conjugate movements.
Hess Chart
Plot of ocular motility used to map and follow extraocular muscle palsies.
Patching (Amblyopia)
Occlusion of the dominant eye to force use of the amblyopic eye; mainstay of amblyopia treatment with atropine penalisation as alternative.

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Suggested study sequence

Six phases used by recent passers. Spread across 4–8 weeks per subspecialty.

  1. 1

    1. Visual development

    Acuity milestones, sensitive periods, refractive trajectory.

  2. 2

    2. Amblyopia

    Classification, screening, treatment ladders.

  3. 3

    3. Strabismus

    ET, XT, A and V patterns, special syndromes, surgical approaches.

  4. 4

    4. ROP

    Screening criteria, classification, treatment thresholds, anti-VEGF role.

  5. 5

    5. Anterior segment disorders

    Congenital cataract, glaucoma, anterior segment dysgenesis.

  6. 6

    6. Posterior segment and tumours

    Retinoblastoma, Coats, FEVR, juvenile retinoschisis.

Free pediatric ophthalmology sample MCQs

A taste of the exam-style stems from the full bank.

Q1.A child with leukocoria, strabismus, and a heritable family history – most concerning diagnosis:
A. Congenital cataract
B. Retinoblastoma
C. Persistent fetal vasculature
D. Coats disease
E. Toxocariasis

Explanation: Leukocoria in a child must rule out retinoblastoma – the most common intra-ocular malignancy in childhood, often heritable (RB1 mutation).

Q2.Critical period for visual development is approximately:
A. 0–4 months
B. Birth to 7–8 years (sensitive in first 2 y)
C. Up to 18 years
D. 0–1 month only
E. 1–14 years

Explanation: Visual development is most sensitive in the first 2 years but plasticity extends to 7–8 years; amblyopia treatment is most effective during this period.

Q3.Most common type of childhood strabismus:
A. Infantile esotropia
B. Accommodative esotropia
C. Intermittent exotropia
D. Sensory esotropia
E. Brown syndrome

Explanation: Accommodative (refractive) esotropia is the most common childhood esotropia, typically presenting at 2-3 years in a hyperope; treated with full hypermetropic correction.

Pediatric Ophthalmology FAQ

Answers to the questions residents ask most about this topic.

When should amblyopia treatment start?
As early as possible after refractive correction. Best outcomes before age 5; meaningful gains possible up to 12 in some cases.
What is the gold standard treatment for primary congenital glaucoma?
Angle surgery — goniotomy (clear cornea) or trabeculotomy (cloudy cornea). Repeat if needed before considering trabeculectomy.
ROP screening criteria?
Birth weight ≤1500 g or gestational age ≤30 weeks, plus selected larger infants with unstable course.
When to consider surgery for intermittent exotropia?
Increasing manifest deviation, deterioration in stereopsis, large angle (>20 PD) or deteriorating control on Newcastle scale.
Recommended book for paediatric ophthalmology?
Wright Pediatric Ophthalmology and Strabismus; Taylor & Hoyt for depth; our handwritten paeds notes for exam revision.

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