Open AccessBase Curve of Progressive Addition Lenses Influences Clear Vision and Stereopsis Area
Author(s) -
Go Mawatari,
Saeko Uchida,
N. Nao-i
Publication year - 2020
Publication title -
clinical optometry
Language(s) - English
Resource type - Journals
ISSN - 1179-2752
DOI - 10.2147/opto.s282326
Subject(s) - stereopsis , binocular vision , optometry , visual acuity , monocular , peripheral vision , dioptre , artificial intelligence , computer vision , ophthalmology , medicine , computer science
Progressive addition lenses (PAL) are effective, particularly for middle-aged and elderly people who require reading spectacles. However, with PALs, peripheral vision may be distorted and blurred because of both the lateral bending of the surface and the effect of unequal bending of the light coming from an off-axis location in the tangential and sagittal directions, which may lead to a decrease in the quality of vision. Till date, no evaluation of PALs has been reported with regard to peripheral and binocular vision. We investigated the influence of high-base-curve PAL on the visual function of binocular vision using a synoptophore.