epithelial defect的用法和样例：
例句
- After two weeks of fortified antibiotic treatment, the corneal ulceration was controlled, but the persistent epithelial defects were unhealed.
经过两周加强性抗生素眼药水治疗，角膜溃疡已获得控制，但持续性角膜上皮缺损一直未愈合。 - The eye was irrigated with saline immediately, but the initial slit-lamp examination showed diffuse punctate epithelial keratopathy, prominent conjunctival injection and chemosis.
病人在急诊室立即接受大量生理食盐水冲洗，随后之眼部细隙灯检查发现左眼有明显之点状角膜上皮缺损及结膜充血水肿。
