ACCOMMODATION IN ASTIGMATIC EYES

被引：11

作者：

BYAKUNO, IE

OKUYAMA, F

TOKORO, T

AKIZAWA, Y

机构：

[1] Department of Ophthalmology, Tokyo Medical and Dental University, School of Medicine, Tokyo

[2] Eye Clinic, Tokyo Metropolitan Toshima, General Hospital, Tokyo

来源：

OPTOMETRY AND VISION SCIENCE | 1994年 / 71卷 / 05期

关键词：

ASTIGMATISM; ACCOMMODATION; TARGET CHART CONTOURS; AUTO REFRACTOMETER;

D O I：

10.1097/00006324-199405000-00004

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Purpose. To investigate the effect of target chart contours and the severity of astigmatism on accommodation in astigmatic eyes. Methods. The accommodative responses of 30 subjects were measured with an automated refractometer (Canon RK-1) using star pattern and bar pattern targets. Results. The mean accommodative response was greatest when the bar pattern was parallel to the stronger principal meridian of the eye, followed by the star pattern and the bar pattern parallel to the weaker meridian on both meridians. Similar results were obtained in subjects with astigmatism greater or less than 1.25 D. The mean slopes of AR/AS plots decreased in the same order as the accommodative response and the change was significant in subjects with astigmatism exceeding 1.25 D. In addition, about one-third of the subjects showed a consistent decrease in astigmatism with accommodation. Conclusions. These results indicate that the type of target chart and the severity of astigmatism influence the accommodative response.

引用

页码：323 / 331

页数：9

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