About Retinitis pigmentosa all are true EXCEPT:
ANSWER: (C) Early loss of central visionREF: khurana 4th ed p. 260-262Retinitis pigmentosaNight blindness is earliest featureDefective dark adaptationPartial or ring scotomaTubular visionLoss of central vision by age of 50-60 yearsFundus changesRetinal pigmentary changes typically perivascular and resemble bone corpuscles in shapeAttenuated or narrowed retinal arteriolesPale and waxy optic discs
Night blindness
Waxy disc
Early loss of central vision
Attenuation of retinal vessels
Dystrophies and Degenerations