Abstract

Retinitis pigmentosa (RP) is a pigmentary retinal degeneration that is typically characterized by profound nightblindness and progressive visual field loss. Visual field loss typically begins in the midperiphery as a ring scotoma and spreads both centrally and to the far periphery, resulting in severely contracted fields that often are characterized as "tunnel vision". Visual acuity typically remains 20/40 or better until the most advanced stages of the disease. Although RP has been characterized clinically, little is known about the spatial sense of the RP eye. For example, how accurate and precise are spatial position judgments when the visual targets are within the remaining parts of the patient’s visual field?

© 1990 Optical Society of America