早期白内障中的眩光敏感度。
Glare sensitivity in early cataracts.
作者信息
Lasa M S, Podgor M J, Datiles M B, Caruso R C, Magno B V
机构信息
Ophthalmic Genetics and Clinical Services Branch, National Eye Institute, National Institutes of Health, Bethesda, MD 20892.
出版信息
Br J Ophthalmol. 1993 Aug;77(8):489-91. doi: 10.1136/bjo.77.8.489.
In a previous study significant glare sensitivity (using Vistech MCT8000) was found only in patients with posterior subcapsular cataracts (PSC) beyond the very early (LOCS II grade 1) stage. The aim of the present study was to evaluate glare sensitivity in patients with early cataracts. The brightness acuity tester (BAT) was used with the Pelli-Robson chart on 50 patients with early cataracts (LOCS II grade 1 or 2) and on 14 normal volunteers. Only age and PSC were found to be associated with change in contrast sensitivity at high glare. Eyes with grade 1 PSC were not significantly different from eyes with grade 0 PSC after adjusting for age. Eyes with grade 2 PSC had significant glare effect compared with eyes having grade 0 PSC. Thus, glare sensitivity is associated only with early (grade 2) PSC. Other tests still need to be developed to assess visual function changes in patients with early cortical and nuclear cataracts.
在先前的一项研究中，仅在处于非常早期（LOCS II 1级）之后的后囊下白内障（PSC）患者中发现了显著的眩光敏感度（使用Vistech MCT8000）。本研究的目的是评估早期白内障患者的眩光敏感度。对50例早期白内障（LOCS II 1级或2级）患者和14名正常志愿者使用了亮度视力测试仪（BAT）和佩利-罗布森视力表。仅发现年龄和PSC与高眩光下的对比敏感度变化相关。在调整年龄后，1级PSC的眼睛与0级PSC的眼睛没有显著差异。与0级PSC的眼睛相比，2级PSC的眼睛有显著的眩光效应。因此，眩光敏感度仅与早期（2级）PSC相关。仍需要开发其他测试来评估早期皮质性和核性白内障患者的视觉功能变化。
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