Which of the following is the MOST sensitive clinical finding for detecting paediatric strabismic amblyopia in a pre-verbal child?

• A Hirschberg corneal reflex test
• B Preferential looking test with Teller acuity cards ✓
• C Brückner test (red reflex comparison between eyes)
• D Cover-uncover test

Explanation

Teller acuity cards (preferential looking) are the gold standard for objective assessment of grating visual acuity in pre-verbal infants and toddlers. The child preferentially looks at the striped pattern over a blank grey field; progressively finer spatial frequencies are tested to threshold. Brückner's test compares the brightness of the red reflex and can detect strabismus but is less quantitative for VA. Hirschberg and cover tests identify strabismus but not amblyopia severity.

Reference: Khurana Comprehensive Ophthalmology, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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