[关键词]
[摘要]
目的：研究有晶状体眼后房型人工晶状体(ICL)植入术对高度近视眼对比敏感度的影响。
方法：选择行ICL植入术的高度近视眼患者27例52眼，用对比敏感度测试仪分别测试术前及术后1wk最佳矫正视力下的对比敏感度值。测试分为明视、明视眩光、暗视、暗视眩光四种模式，每种模式测试1.5，3，6，12，18c/deg五个空间频率。结果采用配对t检验进行统计学分析，以P<0.05表示差异有统计学意义。
结果：ICL植入术后1wk裸眼视力4.8558±0.6960，术后1mo裸眼视力4.9519±0.1513，术后3mo裸眼视力4.8865±0.5929。术后1wk； 1，3mo裸眼视力较术前裸眼视力均明显提高(P<0.05)。术后明视、暗视、明视眩光、暗视眩光四种模式下空间频率为1.5，3，6，12，18c/deg对比敏感度值较术前均有明显提高(P<0.05)。
结论：高度近视眼植入ICL后对比敏感度较术前明显提高，视功能得到显著改善。
[Key word]
[Abstract]
AIM: To compare changes in visual contrast sensitivity after implantable contact lens(ICL)implantation of posterior chamber phakic intraocular lens in high myopia eyes.
METHODS: Contrast sensitivity function and visual acuity were evaluated in 52 eyes of 27 high myopia patients undergoing ICL implantation. We tested the contrast sensitivity pre-operation and 1 week after operation with best spectacle visual correction. The test included 4 modes which were day and night, with and without glare and 5 space frequents were 1.5c/deg, 3c/deg, 6c/deg, 12c/deg, 18 c/deg.
RESULTS: The mean value of uncorrected visual acuity after ICL implantation was 4.8558±0.6960(ranged from 4.5 to 5.1). The postoperative contrast sensitivity values were found significantly higher(P<0.05)than those of the preoperative eyes. One week, 1 month, 3 months postoperatively, the uncorrected visual acuity was significantly improved(P<0.05).
CONCLUSION: ICL implantation improves the contrast sensitivity and visual function of the high myopia eyes.
[中图分类号]
[基金项目]
辽宁省教育厅重点实验室项目(No.2009S107); 辽宁省科技厅科技攻关项目(No.2010225034)
