TY - JOUR
AU - Peli, Eli
AB - 1040-5488/09/8605-0492/0 VOL. 86, NO. 5, PP. 492–502 OPTOMETRY AND VISION SCIENCE Copyright © 2009 American Academy of Optometry ORIGINAL ARTICLE Clinical and Laboratory Evaluation of Peripheral Prism Glasses for Hemianopia † ‡ Robert G. Giorgi*, Russell L. Woods , and Eli Peli ABSTRACT Purpose. Homonymous hemianopia (the loss of vision on the same side in each eye) impairs the ability to navigate and walk safely. We evaluated peripheral prism glasses as a low vision optical device for hemianopia in an extended wearing trial. Methods. Twenty-three patients with complete hemianopia (13 right) with neither visual neglect nor cognitive deficit enrolled in the 5-visit study. To expand the horizontal visual field, patients’ spectacles were fitted with both upper and lower Press-On Fresnel prism segments (each 40 prism diopters) across the upper and lower portions of the lens on the hemianopic (“blind”) side. Patients were asked to wear these spectacles as much as possible for the duration of the study, which averaged 9 (range: 5 to 13) weeks. Clinical success (continued wear, indicating perceived overall benefit), visual field expansion, perceived direction, and perceived quality of life were measured. Results. Clinical success: 14 of 21 (67%) patients chose to continue to wear the 
TI - Clinical and Laboratory Evaluation of Peripheral Prism Glasses for Hemianopia
JF - Optometry and Vision Science
DO - 10.1097/OPX.0b013e31819f9e4d
DA - 2009-05-01
UR - https://www.deepdyve.com/lp/wolters-kluwer-health/clinical-and-laboratory-evaluation-of-peripheral-prism-glasses-for-4UvOFGDDQ4
SP - 492
EP - 502
VL - 86
IS - 5
DP - DeepDyve
ER -