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目的：探讨玻璃体后脱离（ｐｏｓｔｅｒｉｏｒｖｉｔｒｅｏｕｓｄｅｔａｃｈｍｅｎｔ，ＰＶＤ）程度与糖尿病视网膜病变（ｄｉａｂｅｔｉｃｒｅｔｉｎｏｐａｔｈｙ，ＤＲ）病情发展间的关系。方法：根据ＰＶＤ程度将１８３只眼ＤＲ分为完全ＰＶＤ、部分ＰＶＤ及无ＰＶＤ３组，经平均３２个月的治疗，追踪观察其病情及视力变化。结果：完全ＰＶＤ组ＤＲ病情稳定，视力预后较好；部分ＰＶＤ组病情易恶化，视力预后差。结论：ＰＶＤ程度对ＤＲ病程发展及视力预后有重要影响
Objective: To investigate the relationship between the degree of posterior vitreous detachment (PVD) and the development of diabetic retinopathy (DR). Methods: According to the degree of PVD, 183 eyes were divided into complete PVD, partial PVD and non-PVD3 group. The patients were followed up for 32 months to observe the changes of their disease and visual acuity. Results: The PVD in the complete PVD group was stable and the prognosis of visual acuity was good. In some PVD groups, the disease was aggravated and the visual acuity was poor. Conclusion: The degree of PVD has an important influence on the development of DR and the prognosis of vision