结果完全性玻璃体后脱离超声表现可见玻璃体后界膜回声，呈纤细波浪状，不与眼球壁相连；

Results Typical acoustic properties of complete PVD presented clearly the vitreous posterior boundary membrane echo, rugosity and slender wave form, which didn't connect with the eyeball wall;

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结果：手术中发现15眼（71.4%）出现了不完全性的玻璃体后脱离（PVD），7眼（33.3%）有视网膜前膜形成，4眼（19.0%）发生视网膜脱离。

RESULTS: Incomplete posterior vitreous detachment (PVD) was found in 15 eyes (71.4 %), epiretinal membrane was formed in 7 eyes (33.3 %), and retinal detachment occurred in 4 eyes (19.0 %).

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