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糖尿病性视网膜病是美国成人失明的主要原因.糖尿病性视网膜病可分为两大类型,称为非增殖性型及增殖性型.前者主要为视网膜静脉扩张,继发微细血管瘤及视网膜出血,严重时还会有小血管新生.眼底检查可见其改变只局限于视网膜,小血管渗漏,以致视网膜水肿,如果这种改变发生于黄斑部,将明显降低视力.这种类型改变约占糖尿病视网膜病的60%。后者增殖性视网膜病,为视神经乳头附近有小血管新生,可穿过视网膜的内界膜,在视网膜的表面生长,进而长入玻璃体,严重地影响了视力,更严重的是若出现出血、纤维的沉积可使玻璃体发生疤痕性收缩,甚至招致视网膜剥离.1970 Robert Machemer 等(注)介绍了他们的治疗血管新生及出血的可行手术办法,他们创制了玻璃体灌吸切器(Vitreous infusion suction cutter.)用
Diabetic retinopathy is the leading cause of blindness in adults in the United States.Diabetic retinopathy can be divided into two major types, referred to as nonproliferative and proliferative type.The former mainly for retinal vein dilatation, secondary hemangiomas and retinal hemorrhage, In severe cases, there will be small blood vessels .Vascular examination showed changes only confined to the retina, small blood vessels leakage, resulting in retinal edema, if this change occurs in the macula, will significantly reduce vision .This type of change accounts for about the diabetic retina 60% of the disease. The latter proliferative retinopathy, the optic nerve near the nipple small angiogenesis, can penetrate the inner limiting membrane of the retina, the growth of the surface of the retina, and then grow into the vitreous, seriously affecting vision, the more serious is if there is bleeding, The deposition of fibers can cause scarring of the vitreous and may even cause retinal detachment.2070 Robert Machemer et al. (2007) introduced their viable surgical approach to angiogenesis and hemorrhage by creating a Vitreous infusion suction cutter .)use