Methods Direct and indirect ophthalmoscopy and three-mirror contact lens exa minations were performed on 30 consecutive cases aged under 20 years old.

• 方法对30例20岁以下的视网膜脱离患者回顾性统计其视网膜裂孔的形态、位置、大小、数目和患眼的屈光状态等,并进行分析总结。