Retinitis pigmentosa is characterized by ?: (A) Central scotoma, (B) Centrocaecal scotoma, (C) Tubular vision, (D) Isopteric contraction
Answer is C. Ans. is 'c' i.e., Tubular vision Impoant facts Earliest visual field defect in primary open angle glaucoma- Isopeteric contraction. Earliest clinically significant visual .field defect in primary open angle glaucoma --> Paracentral scotoma, Visual field deject in rheugmatogenous retinal detachment- Loss of peripheral field. Visual field defect in retinitis pigmentosa- Tubular vision. Most common visual ,field defect in optic neuritis - Central or centrocaecal. Visual field defect in papilloedema- Enlargement of blind spot and progressive contraction of visual _field. Visual field defect in Leber's optic neuropathy- Centmcaecal. Characteristic visual .field defect in anterior ischemic optic neuropathy- Altitudinal visual field defects.