单眼和双眼诱导模糊对立体视敏的影响

Thokozile I. Metsing
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引用次数: 0

摘要

背景:立体视觉在我们的视觉系统中起着重要的作用,因为它允许深度感知进行日常活动。目的:本研究的目的是使用Randot®立体测试(RST)在近(40 cm)处确定单眼和双筒引起的立体视力模糊的严重程度和比例。环境:数据收集于约翰内斯堡大学验光诊所。方法:采用横断面、实验、前瞻性设计和定量方法。40名年龄在18岁到25岁之间的大学生被邀请参加这项研究。通过1屈光度(D)至3维透镜在单眼和双眼诱导模糊,并在近(40 cm)处使用RST测量立体视敏度。结果:单眼和双眼分别添加1d和3d晶状体后,立体视敏度降低,单眼的立体视敏度更差,单眼和双眼添加1d晶状体后,立体视敏度差异无统计学意义(p = 0.17)。单眼和双眼分别加入2d (p = 0.00)和3d (p = 0.00)后,立体视敏度显著降低。结论:单眼诱导光学模糊对立体视敏的影响明显大于双眼诱导光学模糊。然而,不同的调节幅度可能会影响一些参与者单眼和双眼诱导的立体视敏度。贡献:本研究为临床研究,主要探讨单眼和双眼诱导模糊对立体视敏的影响。主要的见解是,与诱导模糊双眼相比,诱导模糊单眼对立体锐度的影响显著。
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The effect of induced blur monocularly and binocularly on stereoacuity
Background: Stereopsis plays a significant role in our visual system because it allows perception of depth to perform day-to-day activities. Aim: The aim of this study was to determine the severity and proportions of monocular versus binocular-induced blur on stereoacuity using the Randot ® Stereo Test (RST) at near (40 cm). Setting: Data were collected at the optometry clinic of the University of Johannesburg. Methods: The study used a cross-sectional, experimental and prospective design with a quantitative approach. Forty university students between the ages of 18 years and 25 years were invited to participate in this study. Blur was induced monocularly and binocularly through 1 dioptre (D) to 3 D lenses and stereoacuity was measured using the RST at near (40 cm). Results: Stereoacuity measured with the added 1 D to 3 D lenses monocularly and binocularly resulted in reduced stereopsis, which was worse monocularly, found not to be significant ( p = 0.17) with the addition of the 1 D lens(es) monocularly and binocularly. Significant reductions in stereoacuity were found with the addition of 2 D ( p = 0.00) and 3 D ( p = 0.00) monocularly and binocularly, respectively. Conclusion: The effect of induced optical blur monocularly on stereoacuity impacted significantly compared with induced binocular blur. However, the different accommodative amplitudes could have affected monocularly and binocularly induced stereoacuity for some participants. Contribution: The study is clinical and focuses on the effect of induced blur monocularly and binocularly on stereoacuity. Key insights are that the effect of induced optical blur monocularly impacted significantly on stereoacuity compared with induced blur binocularly.
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来源期刊
African Vision and Eye Health
African Vision and Eye Health Health Professions-Optometry
CiteScore
1.00
自引率
0.00%
发文量
46
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