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观察了300例586眼戴SCL并发症患者，其中10例19眼并发角膜新生血管占总数的3．24％，日戴组3例6眼占1．43％；周戴组7例13眼占7.47％，两组差异非常显著（P＜0．05）。分析其发生原因，主要与戴SCL后角膜缺氧、创伤、炎症水肿、免疫反应及SCL不匹配等相关因素有关，周戴组较日戴组上述相关因素加重。使用优质的含水量高的超薄镜片，长戴型SCL当日戴镜使用，尽量缩短戴镜时间等是防止并发角膜新生血管的主要措施。
Three hundred and fifty-eight eyes of 586 eyes with SCL complications were observed. Of them, 10 eyes had corneal neovascularization in 19 eyes, accounting for 3.24% of the total, and 6 eyes in Dayi group accounting for 1.43% 7.47%, the difference between the two groups was significant (P <0.05). Analysis of the causes, mainly associated with corneal hypoxia after wearing SCL, trauma, inflammatory edema, immune response and SCL mismatch and other related factors, Zhou Dai group than the Dai group increased the above-mentioned factors. The use of high-quality ultra-thin lenses with high water content, wear long wear SCL wearing glasses on the day, try to shorten the time wearing glasses and so is the main measure to prevent corneal neovascularization.