España-Gregori E, Montés-Micó R, Bueno-Gimeno I, Díaz-Llopi M, Menezo-Rozalén J L
Optics Department, Valencia University, Spain.
Doc Ophthalmol. 2001 Nov;103(3):195-200. doi: 10.1023/a:1013016005082.
The purpose of this study is to determine horizontal latent ocular deviations in patients with advanced AIDS (CD4+ count <0.050 x 10(9)/l) and to compare with normal values by means of the von Graefe technique. Twenty patients aged between 17 and 44 years with AIDS and aged-matched control groups were submitted to study. The AC/A ratio was also measured in both groups using the Gradient test. The AIDS patients showed a horizontal latent deviation value of 0.28+/-1.07delta exo at near (40 cm.) and 2.12+/-1.37delta eso at distance (6 m). The AC/A ratio obtained was 2.03+/-0.65. Statistically significant differences were obtained in relation to aged-matched control group at near and at distance (p<0.01). The horizontal latent ocular deviation at near and at distance in advanced AIDS patients showed lower values than the expected. The AC/A relationship also was lower. The results obtained in this study indicate that AIDS patients suffer a divergence insufficiency, which could add to other visual complaints such as blurred vision, photophobia, nyctalopia and reading difficulty.
本研究的目的是确定晚期艾滋病患者（CD4 + 细胞计数<0.050×10⁹/L）的水平潜在性眼位偏斜，并通过von Graefe技术与正常值进行比较。对20例年龄在17至44岁之间的艾滋病患者及年龄匹配的对照组进行了研究。两组均采用梯度法测量AC/A比率。艾滋病患者在近距（40cm）时水平潜在性偏斜值为0.28±1.07△外隐斜，在远距（6m）时为2.12±1.37△内隐斜。所获得的AC/A比率为2.03±0.65。在近距和远距时，与年龄匹配的对照组相比有统计学显著差异（p<0.01）。晚期艾滋病患者在近距和远距时的水平潜在性眼位偏斜值低于预期。AC/A关系也较低。本研究获得的结果表明，艾滋病患者存在散开功能不全，这可能会加重其他视觉症状，如视力模糊、畏光、夜盲和阅读困难。
