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目的 :探讨有周边视网膜裂孔的患者中玻璃体后脱离 (PVD)产生的相关因素及激光治疗的指征。方法 :4 4例 (5 4只眼 )按年龄及屈光分为两组 ,均行三面镜检查周边部眼底 ,以 90D前置镜观察眼球运动时玻璃体的状况。记录有无玻璃体后脱离及视网膜周边变性 ,测量眼轴长及屈光度并进行分析。全部病例均行多波长激光治疗。结果 :5 0岁以上视网膜周边裂孔患者均有PVD ,与年龄相关 ;5 0岁以下由于高度近视 ,眼轴增长 ,PVD发生率也高于正视眼的同龄人。多波长激光治疗效果良好 ,仅有 5例除激光治疗外尚需要做巩膜外加压。结论 :视网膜周边裂孔患者PVD发生率随着年龄增长或屈光度增加、眼轴增长而上升 ,多波长激光预防治疗是必要的。
Objective: To investigate the related factors of posterior vitreous detachment (PVD) and the indications of laser treatment in patients with peripheral retinal tears. Methods: Forty four cases (54 eyes) were divided into two groups according to their age and refractive power. All eyes were examined with a three-mirror. The 90D prefoscope was used to observe the vitreous condition during eye movements. Record the vitreous detachment and peripheral retinal degeneration, axial length and diopter measurement and analysis. All cases were multi-wavelength laser treatment. Results: Peripheral retinal perforation in patients over 50 years old had PVD, which was related to age. Under 50 years of age, due to high myopia and axial length, the incidence of PVD was also higher than that of eyelid peers. Multi-wavelength laser treatment is good, only 5 cases in addition to laser treatment still need to do extra-corneal pressure. Conclusion: The incidence of PVD in patients with periocular retinal tears increases with the increase of age or refraction, and the axial length increases. Multi-wavelength laser prophylaxis is necessary.