近视患者离轴视网膜检影时的屈光度变化。

Refractive changes during off-the-axis retinoscopy in myopia.

机构信息

Department of Optometry, Sanjivni Eye and Medicare Centre, Ambala, Haryana, India.

出版信息

Indian J Ophthalmol. 2022 Mar;70(3):779-781. doi: 10.4103/ijo.IJO_1123_21.

DOI:10.4103/ijo.IJO_1123_21

PMID:35225512

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9114560/

Abstract

PURPOSE

To analyze the refractive shift during off-the-axis retinoscopy under cycloplegic drugs in myopic patients during ocular examination.

METHODS

Prospective cross-sectional study was carried out among 10 myopic patients having refractive errors of -3.00 D or less. All the subjects underwent cycloplegic refraction by a single examiner at 0°, 10°, and 20°. Descriptive data were analyzed as mean and standard deviation. Paired t-test was used to compare the mean differences between on-axis (0°) and off-axis (10° and 20°) retinoscopy.

RESULT

The mean spherical equivalent refraction of 10 myopic patients showed an increase in myopic shift with approximately 7% and 18% for 10° and 20° of eccentricity, respectively. Similarly, the mean spherical equivalent measure on axis (0°) and off axis (10° and 20°) were -2.5495, -2.737, and -3.0265, respectively. The mean spherical equivalent differences between on-axis (0°) and off-axis (10° and 20°) showed statistically significant differences with P < 0.05.

CONCLUSION

This study concluded that a greater degree of eccentricity will induce a greater amount of errors in retinoscopy.

摘要

目的

分析在睫状肌麻痹药物下近视患者离轴视网膜检影时的屈光偏移。

方法

对 10 名近视患者进行了前瞻性横断面研究，这些患者的屈光度均在-3.00 D 或以下。所有受试者均由一名检查者在 0°、10°和 20°进行睫状肌麻痹验光。采用描述性数据作为平均值和标准差进行分析。采用配对 t 检验比较了轴上（0°）和离轴（10°和 20°）视网膜检影的平均值差异。

结果

10 名近视患者的平均等效球镜屈光度显示，离轴 10°和 20°处的近视偏移分别增加了约 7%和 18%。同样，轴上（0°）和离轴（10°和 20°）的平均等效球镜测量值分别为-2.5495、-2.737 和-3.0265。轴上（0°）和离轴（10°和 20°）之间的平均等效球镜差异具有统计学意义（P<0.05）。