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What is A child presents with night blindness, delayed dark adaptation. Which investigation is to be done fuher to confirm the diagnosis? and explain in detail?
Retinitis pigmentosa * APOPTOSIS OF RODS * AUTOSOMAL RESSECIVE * AUTOSOMAL DOMINANT * X LINKED - WORST PROGNOSIS C/F* NYCTALOPIA * RING SCOTOMA * TUBULAR VISION O/E- TRIAD * PALE WAXY DISC* ARETRIOLAR ATTENUATION* BONE SPICULE PIGMENTATION ( MOST CHARACTERISTIC ) Gold standard for Dx - ERG EOG - Gold standard for best diseaseRetinoscopy - differentiate between type of refractive error