A child presents with night blindness, delayed dark adaptation. Which investigation is to be done fuher to confirm the diagnosis?
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
Dark adaptometry
ERG
EOG
Retinoscopy
FMGE 2018