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目的：探讨前部增殖性玻璃体视网膜病变（aPVR）的临床表现特点。方法：对31例31只眼具有aPVR复杂性机网膜脱离进行回顾性分析。结果：21只眼（67．74％）眼压低于10mmHg；13只眼（41．94％）有钝伤史。18只眼（58．07％）表现为环形收缩，21只眼（67．74％）为前移位；两型病变累及上半部视网膜者分别为8只眼（44.44％）和9只眼（42．86％），均少于累及下半部者、分别为18只眼（100％，P＜0．0005）和17只眼（80．95％，P＜0.025）。钝伤眼中前移位12只眼（92．30％），高于9只眼（50％）非钝伤者（P＜0.025）。后部PVR－D2、D3时aPVR范围超过1个象限者占15只眼（100％），而．PVR－C1～D1时仅9只眼（64．29％）超过此范围（P＜0．025）。讨论：aPVR为复杂性视网膜脱离的重要特征性表现之一，病变主要累及下半部视网膜。钝伤史和后部PVR严重性可影响aPVR的表现和程度。
Objective: To investigate the clinical features of anterior proliferative vitreoretinopathy (aPVR). Methods: A retrospective study of 31 patients with aPVR complex retinal detachment was performed in 31 eyes. Results: The intraocular pressure of 21 eyes (67.74%) was lower than 10mmHg; the history of blunt trauma was found in 13 eyes (41.94%). Eighteen eyes (58.07%) showed ring-shaped contraction and 21 eyes (67.74%) had anterior displacement. Eight eyes (44.44%) and 9 eyes (42.86%), less than those in the lower half, 18 eyes (100%, P <0.0005) and 17 eyes (80.95%, P <0.025), respectively. Twelve eyes (92.30%) were anteriorly displaced in patients with blunt trauma, more than 9 eyes (50%) without blunt trauma (P <0.025). Posterior PVR-D2, D3, aPVR more than 1 quadrant of 15 eyes (100%). Only 9 eyes (64.29%) of PVR-C1 ~ D1 exceeded this range (P <0.025). Discussion: aPVR is one of the most important features of complex retinal detachment. Lesions mainly involve the retina of the lower half. The history of blunt trauma and the severity of posterior PVR can influence the performance and extent of aPVR.