患者，女，10岁，学生。其母诉出生时发现左眼角膜上有一个小包块，随年龄增长而逐渐增大，近来自觉肿块明显增大，无怕光、流泪及疼痛，于1994年元月4日就诊。体检：一般情况良好，全身检查无特殊，右眼未见异常，左眼角膜上见一个肿块，约1．0cm×1．0cm，表面粗糙，无溃疡。 Patient, female, 10 years old, student. His mother was born at the time of the discovery of the left cornea has a small mass, with age and gradually increased, recently conscious mass was significantly increased, no fear of light, tears and pain, in 1994 January 4 treatment. Physical examination: the general situation is good, no special examination of the body, no abnormalities in the right eye, see a mass on the left cornea, about 1.0cm × 1.0cm, surface roughness, no ulcers.