接触镜相关性角膜新生血管形成临床分析

目的 探讨软性接触镜（ＳＣＬ）相关笥角膜新生血管形成（ＣＮＶ）的流行这、临床表现、危险因素与预防措施。方法 对１９９５年７月～１９９７年６月验配ＳＣＬ的屈光不正患者ＣＮＶ发生情况进行回顾性分析。结果 配前检查时，重配者中，ＣＮＶ阳性者（〉０．６ｍｍ）占７．４％，多位于角膜上下部的浅基质层，症状轻微，其中５１．９％有长戴史，４８．２％有配适问题，７４．１％护理不当，无定期复查者，初配者中，０．４％有

The clinical analysis of corneal neovascularization associated with soft contact lens wear

ObjectiveTo evaluate the prevalence,clinical presentation and associated risk factors of corneal neovascularization(CNV) associated with soft contact lens(SCL) wear and explore methods for its prevention.MethodsA retrospective study was performed to review the charts of CNV in the ametropic patients fitting SCL from July 1995 to June 1997.ResultsIn the prefit ocular examinations,7 4% of the refitter had CNV(>0 6?mm).The CNV was mainly located in the superior and inferior anterior stroma,most patients had no obvious symptoms,51 9% with overnight wear at least part of the time,48 2% had poor fit,74 1% had inappropriate lens care,and none had regular follow ups.0 4% of the new fitter had mild CNV.After the SCL fitting,65 2% of all the SCL wearers could comply with follow ups regularly,of which 2 4% had CNV.32 9% of the CNV patients had poor fit and 57 9% had inappropriate lens care.According to FDA standard(>1 5?mm),the last CNV incidence 0 4%,which accounted for 11 3% of all the SCL complications,was significantly lower than that of the refitter(0 8%) in the prefit examinations ( P <0 01).ConclusionThe incidence of SCL associated CNV could be reduced through enhancing SCL fitting and extent of care,and with regular follow ups.