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3.2 白内障
Sabates的报告中［11］有27%的患者用SF后发生白内障，包括后囊下混浊和核硬化。Lincoff等［4］也曾报告C3F8致后囊下出现空泡，随着气泡的吸收，大部分可恢复正常，正确调整患者术后体位，避免晶体与气泡大范围接触可预防或减轻白内障的发生。
吕林等［23］报告硅油与晶体接触后会引起白内障，硅油取出后白内障仍继续发展，说明只要玻璃体腔内注入硅油，都有发生白内障的可能。
3.3 出现新的视网膜裂孔
已有报告玻璃体腔内注射气体后出现新裂孔。气体的浮力可增加对下方网膜的牵拉力，而造成新的马蹄孔［10］。Dreyer认为［25］新的裂孔很小，无晶体眼的裂孔出现在玻璃体基底部。另外，新裂孔出现在气泡的对侧，因该处对玻璃体基底牵拉力最大，新裂孔出现在注气后的第2天。
作者单位:孟 忻 唐少华 北京积水潭医院(100035)
黎晓新 北京医科大学人民医院
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