摘要
目的探讨不同质地随机点立体视图对屈光参差立体视检查的影响,为研制立体视图提供依据。方法自制能分别产生不规则、方形及圆形点的3种计算机随机点立体视图。检查7～12岁屈光参差儿童61例的3种不同质地立体视图交叉、非交叉视差下限立体视锐度,对所测数值进行随机区组方差分析。结果无论交叉或非交叉视差检查,不规则点图所测下限立体视锐度的平均值均为最大,且与方形、圆形点图差异均有统计学意义P(<0.05)。但方形与圆形点图差异无统计学意义(P>0.05)。结论随机点立体视图点子质地对屈光参差立体视检查结果有影响,其中不规则点检查图的难度相对最大,圆形点和方形点对立体视图间差异无显著性。
Objective To study the effect of random-dot stereogram texture on stereotest for anisometropic children,and provide the basis for the stereogram probation. Methods Three computerized random-dot stereograms were established of irregular, quadrate and round random dots. A total of 61 anisometropic children aged from 7 years old to 12 years old were enrolled. Test the children＇ lower stereoacuities with three stereograms in crossed and uncrossed disparity were tested. The tested data were performing randomized block analysis of variance. Results In both crossed and uncrossed disparity, the average value with the irregular random-dot stereogram was maximal. There was statistical significant difference between irregular and quadrate random-dot stereogram, and also between irregular and round random-dot stereogram（P 〈 0.05）. But there was no significant difference between round and quadrate random-dot stereogram （P 〉 0.05）. Conclusion It demonstrates that there is influence on the results of texture of the random-dot stereogram in anisometropic children. Among the three stereograms, the irregular random-dot stereogram is the hardest ,and but significant difference is not found between round and quadrate random-dot stereogram.
出处
《生物医学工程与临床》
CAS
2006年第1期30-32,共3页
Biomedical Engineering and Clinical Medicine
