Purchase this article with an account.
H. Lee, C. Choi, E. Kim, G. Seong, S. Kim, G. Kim, T. Yoo, S. Lee; Reproducibility of the New Computerized Program for Measuring Glare Disability . Invest. Ophthalmol. Vis. Sci. 2003;44(13):2613.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
Purpose: To evaluate reproducibility of new glare measuring software which measure the glare disability quantitatively and to assess its potential use in measuring glare disability objectively, especially after refractive surgery. Methods: 40 eyes of 20 patients who complained glare disability after LASIK were recruited. The subjects were introduced to sit in front of monitor and looked at the white spot on the screen. And they were told to draw the margin of white spot on the screen as they saw. A set of test was repeated three times and the test was repeated five times. The subjects were tested with two different conditions. The first test was performed with naked eye and the second one with +3.00 diopter (D) lens to preventing accommodation. The tests were conducted by same instructor at each time. In order to assess the consistency of the measurements, we utilized both coefficient of variation (CV) and reliability coefficient (RC). Results: The mean luminance of the test room was 5.2±0.3 candelas/m2. During the test, there were no statistically significant differences in visual acuity, refractive errors nor pupil size. The mean duration between the LASIK and the test was 83.4±12.3 days. Measured mean glare disability was 783.6±324.81 pixel (confidence interval: 599.4~923.5)on naked eye, 1109.0±514.96(confidence interval: 836.4~1217.5) with +3.00 spherical lens. The coefficients of variation (CV) and the reliability coefficients (RC) for the glare test examined in this study were 20.12%, 94.76% on naked eye, 17.52%, 88.65% with +3.00 D lens respectively. Conclusions: The result indicates that the measuring glare disability with new software has a good reproducibility and maybe useful to measure the patient’s glare disability in actual environment
This PDF is available to Subscribers Only