CONTRAST SENSITIVITY AND GLARE SENSITIVITY CHANGES WITH 3 TYPES OF CATARACT MORPHOLOGY - ARE THESE TECHNIQUES NECESSARY IN A CLINICAL-EVALUATION OF CATARACT
CONTRAST SENSITIVITY AND GLARE SENSITIVITY CHANGES WITH 3 TYPES OF CATARACT MORPHOLOGY - ARE THESE TECHNIQUES NECESSARY IN A CLINICAL-EVALUATION OF CATARACT
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DOI：
10.1111/j.1475-1313.1989.tb00800.x
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发表时间：
1989-01-01
影响因子：
2.9
通讯作者：
WHITAKER, D
中科院分区：
文献类型：
--
作者：
ELLIOTT, DB;GILCHRIST, J;WHITAKER, D
对18例(39只眼)白内障患者进行了LogMAR视力、对比敏感度和眩光敏感度测量，并与正常人对照。仅使用三种主要形态白内障中的一种。皮质型、核型和后囊膜下型。结果表明，白内障患者的对比敏感度下降是一种中高频段的空间频率损失。对于LogMAR视力<0.5(Snellen等效值大于6/18)的核性和皮质性白内障，在最低空间频率(1c/deg)下没有对比敏感度的损失。对于后囊下白内障，确实存在低空间频率对比敏感度损失，但与视力无关。所有类型的白内障眩光敏感度均增加。这与皮质性和核性白内障的视力有关，但与后囊下型无关。结论：对比敏感度和眩光敏感度测量是评估后囊下白内障患者视功能的有用部分。
LogMAR visual acuity, contrast sensitivity and glare sensitivity measurements were made on 39 eyes of 18 cataractous subjects compared against normative data. Only cataracts of one of the main three morphological cataract types were used.sbd.cortical, nuclear and posterior subcapsular. Results indicate that contrast sensitivity decline with cataract is an intermediate and high spatial frequency loss. For nuclear and cortical cataracts with a LogMAR visual acuity of less than 0.5 (Snellen equivalent better than 6/18), there was no loss of contrast sensitivity at the lowest spatial frequency (1 c/deg). For posterior subcapsular cataracts, low spatial frequency contrast sensitivity loss did occur but was unrelated to visual acuity. Glare sensitivity increased for all cataract types. This was related to visual acuity for both cortical and nuclear cataracts but was not for the posterior subcapsular type. It was concluded that contrast and glare sensitivity measurements are a useful part of the assessment of visual function in patients with posterior subcapsular cataract.