摘要
目的比较三种瞳孔测量方法的不同，并分析不同测量状态对瞳孔大小的影响。方法对年龄为21～32岁的40例最佳矫正视力≥5．0的近视和正视志愿者分别采用照相机拍摄法、Pupillometer瞳孔测量仪和Rosebaum瞳孔尺三种方法测量瞳孔大小。瞳孔大小的测量在远距（5m）的双眼和单眼状态下以及近距（33cm）的清晰注视单个视标和阅读状态下进行。结果自然状态下的照相机拍摄法测得的瞳孔直径均小于Pupillometer瞳孔测量仪（P〈0．01），远距瞳孔直径大于近距．近距清晰注视视标状态下的瞳孔直径大于近距阅读状态（随机区组方差分析，P〈0．05）。结论三种方法中．照相机拍摄法最为自然、精确。瞳孔近反应和阅读状态下的主动性导致了瞳孔大小的差异。
Objective To compare three different measurements and to analyze the factors that influence pupil size under different conditions. Methods Forty volunteers with best corrected visual acuity better than 5.0 in the right eye were enrolled in the study. Their ages ranged from 21 years to 32 years; they were all emmetropes or myopes. Pupil size was measured with a camera, Pupilometer and Rosebaum pupil ruler both at a distance of 5 m under binocular and monocular conditions and at a distance of 33 cm under target fixation and text reading conditions. Results Pupil size was smaller when measured with camera technology than with a pupilometer （paired-samples t-test, P〈0.01）. Pupil size was bigger for distance than for the near condition. At the near condition, pupil size under the target fixation condition was bigger than under the text reading condition （ANOVA, P〈0.05）. Conclusion The camera technology is the nmst precise and natural method for mea- suring pupil size. Near pupillary reaction and the activity involved in reading can cause differences in pupil size.
出处
《眼视光学杂志》
2009年第3期218-220,226,共4页
Chinese Journal of Optometry & Ophthalmology
基金
浙江省科技厅重大国际项目2004BA720A16
关键词
瞳孔直径
调节
测量
pupil size
accommodation
measurement
