Ring scotoma is seen in: (A) High myopia, (B) Pseudophakia, (C) Hypermetropia, (D) Astigmatism
Answer is A. (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 233) The scotoma is a defect in the visual field and corresponds to the degenerated zones of the retinaAnnular or ring-shaped scotoma is a typical feature which corresponds to the degenerated equatorial zone of the retinaRing scotoma is seen in retinitis pigmentosa, high myopia, POAG, aphakic spectacle correction and after panretinal photocoagulation.