CAJ | 학술논문

目的通过测定实验性屈光参差,探讨其对舰船人员立体视的影响.方法健康成人志愿受试者25人,年龄22～34岁,均无眼病史.通过在受试者右眼前试加不同的透镜片,范围1～3 D,造成4种不同类型的屈光参差[单纯近视、单纯远视、近视散光和远视散光(轴90°)],然后应用颜少明数字化随机点立体视检查图测定立体视锐度.结果所有受试者立体视锐度都随屈光参差度的增加而降低.1 D的球镜性屈光参差时,受试者立体视锐度降低至50″～54″;1 D的柱镜屈光参差时,立体视锐度降低至50″～52″.无论何种类型,3 D的屈光参差均可造成极显著的立体视锐度降低.结论各类型低度的屈光参差都可对成人双眼高级视觉功能产生显著的不利影响.因屈光参差而产生的黄斑中心凹抑制是造成立体视降低的主要因素.
목적 통과측정실험성굴광삼차,탐토기대함선인원입체시적영향.방법 건강성인지원수시자25인,년령22～34세,균무안병사.통과재수시자우안전시가불동적투경편,범위1～3 D,조성4충불동류형적굴광삼차[단순근시、단순원시、근시산광화원시산광(축90°)],연후응용안소명수자화수궤점입체시검사도측정입체시예도.결과 소유수시자입체시예도도수굴광삼차도적증가이강저.1 D적구경성굴광삼차시,수시자입체시예도강저지50″～54″;1 D적주경굴광삼차시,입체시예도강저지50″～52″.무론하충류형,3 D적굴광삼차균가조성겁현저적입체시예도강저.결론 각류형저도적굴광삼차도가대성인쌍안고급시각공능산생현저적불리영향.인굴광삼차이산생적황반중심요억제시조성입체시강저적주요인소.
Objective To determine effects of induced anisometropia on stereopsis to assess the potentially detrimental effects of uncorrected anisometropia on stereoacuity in sailers.Methods Twenty-five healthy adult volunteers,who were 22-34 years old(mean:27 years old)and free of ocular diseases,participated in the study.The different lenses ranging from 1-3 D were planced in front of right eyes of subjects,which leaded to 4 different types of anisometropia(simple hypometropia,simple hypermetropia.Stereoacuity was measured by YAN Shao-ming Digital Stereoscopic Test Charts.Results The levels of stereoacuity decreased in all subjects as the degree of anisometropia increased.One diopter of spherical anisometropia had subjects'stereoaeuity reduced to 50″-54″ and that of cylindrical anisometropia had subjects'stereoacuity reduced to 50″-52″.Regardless of type,three diopters of anisometropia had all suhjeets'stereoacuity reduced significantly.Conclusions Low levels of anisometropia can have potentially significant adverse effect on highgrade binocular vision function in adults.Foveal suppression,which is directly related to the degree of anisometmpia,may be responsible for the reduction of stereopsis.