The authors also discuss the importance of the ocular examination before the radiotherapy, the precise treatment planning, the usage of the isodose curve and the follow-up ocular examination.

• 本文并讨论放射治疗前之眼科检查、放射治疗计画、治疗中之等剂量曲线图及术后跟科追踪检查之画要性，藉以早期侦知放射备见网膜病变，并及时施以适当治疗以减少严重并发症之发生。