THE RELIABILITY OF THE PELLI-ROBSON CONTRAST SENSITIVITY CHART

被引：198

作者：

ELLIOTT, DB

SANDERSON, K

CONKEY, A

机构：

[1] Clinical Vision Research Unit, University of Bradford, Bradford, West Yorkshire

来源：

OPHTHALMIC AND PHYSIOLOGICAL OPTICS | 1990年 / 10卷 / 01期

关键词：

D O I：

10.1111/j.1475-1313.1990.tb01100.x

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Normative contrast sensitivity (CS) data were obtained using the commercially available Pelli‐Robson chart from the dominant eye of 30 young (mean (±SD) age 22.5 ± 4.3 years) and 42 older (mean (±SD) age 70.2 ± 6.7 years) subjects with normal healthy eyes. The majority of young subjects were found to have a CS of 1.80 log units or above. The majority of the older subjects were found to have a CS of 1.65 log units or above. CS results were obtained using both sides (A and B) of the Pelli‐Robson chart from 30 (15 young and 15 older) of these subjects. These measurements were repeated under identical conditions, 2 weeks later. There was no significant difference between the results from sides A and B of the chart. The CS scores were shown to be repeatable to within ±0.15 log units or ±1 step. Therefore a significant change in CS score is +2 steps or 0.30 log units. Slight improvements in reliability could be obtained by more careful permutation of letters on each step and a smaller step size. The restriction against these changes is the ensuing increased chart size. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：21 / 24

页数：4

共 28 条

[1] Arden G.B., Testing contrast sensitivity in clinical practice, Clin. Vis. Sci., 2, pp. 213-224, (1988)
[2] Arden G.B., The importance of measuring contrast sensitivity in cases of visual disturbance, Br. J. Ophthalmol., 62, pp. 198-209, (1978)
[3] Ginsburg A.P., A new contrast sensitivity vision test chart, Am. J. Optom. Physiol. Opt., 61, pp. 403-407, (1984)
[4] Wilkins A.J., Delia Sala S., Somazzi L., Nimmo-Smith I., Age‐related norms for the Cambridge low contrast gratings, including details concerning their design and use, Clin. Vis. Sci., 2, pp. 201-212, (1988)
[5] Pelli D.G., Robson J.G., Wilkins A.J., The design of a new letter chart for measuring contrast sensitivity, Clin. Vis. Sci., 2, pp. 187-199, (1988)
[6] Bouma H., Visual recognition of isolated lower‐case letters, Vision Res., 11, pp. 459-474, (1971)
[7] Lupker S.J., On the nature of perceptual information during letter perception, Percept. Psychophys., 25, pp. 303-312, (1979)
[8] Westheimer G., Visual acuity and hyperacuity: Resolution, localisation, form, Am. J. Optom. Physiol. Opt., 64, pp. 567-574, (1987)
[9] Vaegan, Halliday B.L., A forced‐choice test improves clinical contrast sensitivity testing, Br. J. Ophthalmol., 66, pp. 477-491, (1982)
[10] Higgins K.E., Jaffe M.J., Coletta N.J., Caruso R.C., de Monasterio F.M., Spatial contrast sensitivity. Importance of controlling the patient's visibility criterion, Arch. Ophthalmol., 102, pp. 1035-1041, (1984)

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