目的：应用扫频源光学相干断层扫描成像(SS-OCT)观察并分析后皮质前玻璃体囊袋(PPVP)的形态学特点。

方法：前瞻性研究。纳入2019-03/06于河南省立眼科医院行SS-OCT检查发现PPVP的受检者91例138眼。观察PPVP的SS-OCT形态学特点，比较不同性别、年龄、等效球镜受检者的PPVP的宽度和高度的差异。

结果：纳入91例138眼中112眼(81.2%)PPVP形态为船形，19眼(13.8%)为椭圆形，7眼(5.1%)为对勾形。99眼(71.7%)PPVP与Martegiani区连通。138眼的PPVP的平均宽度为6248.82±1117.87μm，平均高度为562.12±476.94μm。不同性别受检者的PPVP的平均宽度和高度比较无差异(P>0.05)，PPVP的宽度与年龄呈正相关(r=0.32，P<0.01)，低度近视组受检者PPVP的高度低于非近视组和中度近视组(P=0.01、0.03)。

结论：PPVP多为黄斑前船形液体腔隙，多与玻璃体管(Cloquet管)连通，其宽度与年龄相关，PPVP的存在可能影响PVD的形成与进展。

METHODS:Prospective study. One hundred and thirty-eight eyes of 91 cases with PPVP observed by SS-OCT in Henan Eye Hospital from March 2019 to June 2019 were included in the study. The average width and height size of PPVP was compared among subjects with different genders, age and equivalent spherical.

RESULTS: In 138 eyes, 112 eyes(81.2%)were ship shaped, 19 eyes(13.8%)were oval, and 7 eyes(5.1%)were hook shaped. Ninety-nine eyes(71.7%)had PPVP which connected with Martegiani area. The average width of PPVP was 6248.82±1117.87μm, and the average height of PPVP was 562.12±476.94μm. There was no difference in the width and height of PPVP between different genders(P>0.05), and the PPVP' width was positively correlated with age(r=0.32, P<0.01). The PPVP' height in low myopia group were lower than that in non-myopia and moderate myopia group eyes(P=0.01, 0.03).

CONCLUSION: PPVP is a boat-shaped fluid cavity in front of the macula, which communicates with the Cloquet canal. Its width is related to the age. The existence of PPVP may play a role in the development of PVD and its progress.