我所自 1998年 7月～ 2 0 0 0年 3月共收治阿米巴角膜炎 9例 ,其中误诊 4例 ,误诊率 4 4 4 %。现分析误诊原因如下。1　临床资料1 1　一般资料　男 3例 ,女 1例 ;年龄 33～ 65岁。1 2　临床表现　 3例角膜中央部溃疡 ,深达基质层 ,呈环形浸润 ,溃疡周边界限清楚 ,略隆起 ;其中 From July 1998 to March 2000, a total of 9 cases of amoebic keratitis were treated, of which 4 were misdiagnosed with a misdiagnosis rate of 444%. The reasons for misdiagnosis are as follows. 1 Clinical data 1 1 General Information 3 males and 1 female; aged 33 to 65 years. 1 2 Clinical manifestations 3 cases of central corneal ulcer, the depth of the stromal layer, showing annular infiltration, the boundaries of the ulcer clear, slightly up; where