Shilling J S
Trans Ophthalmol Soc U K (1962). 1976 Jul;96(2):193-6.
I have described the vascular changes after retinal branch vein occlusion and have shown progressive changes both in the large retinal vessels and in the capillary bed. The capillary reactions are comparable to those seen in central retinal vein occlusion. Retinal oedema due to capillary dilatation and leakage occurs in both conditions but, whereas this is generalized in central retinal vein occlusion, local changes occur in branch vein occlusion. Capillary closure also occurs in both conditions, but the neovascular response differs. In branch vein occlusion significant new vessel formation is restricted to the retina leading to recurrent vitreous haemorrhage. This contrasts with central retinal vein occlusion in which thrombotic glaucoma due to predominantly anterior segment neovascularization is the most serious cause of visual loss.
我已经描述了视网膜分支静脉阻塞后的血管变化，并展示了视网膜大血管和毛细血管床的渐进性变化。毛细血管反应与视网膜中央静脉阻塞所见的反应相似。在这两种情况下，都会因毛细血管扩张和渗漏而出现视网膜水肿，但在视网膜中央静脉阻塞中水肿是全身性的，而在分支静脉阻塞中则出现局部变化。两种情况下也都会发生毛细血管闭塞，但新生血管反应有所不同。在分支静脉阻塞中，显著的新血管形成仅限于视网膜，导致反复性玻璃体出血。这与视网膜中央静脉阻塞形成对比，在视网膜中央静脉阻塞中，主要由于前段新生血管形成导致的血栓性青光眼是视力丧失的最严重原因。
