Vitrectomy benefits the visual function significantly for outer layer retinoschisis with foveal detachment, but has no or very little effects on multilayer retinoschisis.

• 其中，单纯外层劈裂合并中心凹脱离者，手术后视功能改善较明显；而多层劈裂者视功能改善有限或不改善。