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Assessment of the effects of induced anisometropia on binocularity with glasses-free 3D technique

International Journal of Ophthalmology(English edition) 2023年第4期16卷 601-607页

作者： Xu-Bo Yang Wei-Dong Huang Yong-Chuan Liao Department of Ophthalmology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Optometry and Visual Science West China School of MedicineSichuan UniversityChengdu 610041Sichuan ProvinceChina

AIM:To assess the effect of experimentally induced anisometropia on binocularity in normal adults with glassesfree three-dimensional(3D)***:Totally 54 healthy medical students with normal binocularity in the cross-sectional study were *** was induced by placing trail lenses over the right eye,in 0.5 D steps including lenses of-0.5,-1,-1.5,-2,-2.5 D(hyperopic anisometropia)and lenses of+0.5,+1,+1.5,+2,+2.5 D(myopic anisometropia).The glasses-free 3D technique was used to evaluated not only fine stereopsis,but also coarse stereopsis,dynamic stereopsis,foveal suppression,and peripheral suppression in these ***-way analysis of variance was used to compare quantitative data such as fine stereopsis,coarse ***’s Chi-square test was performed to compare categorical data such as dynamic stereopsis,foveal suppression and peripheral ***:The subjects showed a statistically significant decline in fine stereopsis,coarse stereopsis,and dynamic stereopsis with increasing levels of anisometropia(Pbinocularity was af fected when induced anisometropia was more than 1 D(Pbinocularity seem to involve not only foveal suppression,but also peripheral suppression.

关键词： anisometropia binocularity stereopsis glasses-free 3D technique

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Fundamentals of Presbyopia: visual processing and binocularity in its transformation

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Eye and Vision 2018年第1期5卷 1-10页

作者： Olga I.Rozanova Andrey G.Shchuko Tatyana S.Mischenko Irkutsk branch of S.Fyodorov Eye Microsurgery Federal State Institution IrkutskRussian Federation Irkutsk State Medical University IrkutskRussian Federation

Background:The accommodation has considerable interactions with the pupil response,vergence response and *** transformation of visual reception processing and the changes of the binocular cooperation during the presbyopia development are still poorly ***,the regularities of visual system violation in the presbyopia formation need to be *** study aims to reveal the transformation of visual reception processing and to determine the role of disturbances in binocular interactions in presbyopia ***:This study included 60 people with emmetropic refraction,uncorrected distance visual acuity 1.0 or higher(decimal scale),normal color perception,without concomitant *** first group consisted of 30 people(from 18 to 27 years old)without presbyopia,the second cohort comprised 30 patients(from 45 to 55 years old)with *** eyeball anatomy and optics were evaluated using ultrasound biomicroscopy,aberrometry,and *** functional state of the visual system was investigated under monocular and binocular *** registration of the disparate fusional reflex limits was performed by the original technic using a diploptic device which facilitated investigation of the binocular interaction under natural conditions without the accommodation response,but with the different vergence *** disparate fusional reflex was analyzed using the proximal and distal fusion borders,and the convergence and divergence fusion *** calculation of the area of binocularity field was performed in ***:The presbyopia formation is characterized by a change in an intraocular anatomy,optics,visual processing,and *** processes of binocular interaction inhibition make a significant contribution to the misalignment of the visual *** modification of the proximal,distal and convergence fusion borders was *** was revealed that 87%of the presbyopic patients had binocularity sh

关键词： Presbyopia binocularity Visual processing Visual reception

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