Tuulonen A
Department of Ophthalmology, University of Oulu, Finland.
Arch Ophthalmol. 1989 Oct;107(10):1475-80. doi: 10.1001/archopht.1989.01070020549038.
This study was done to document photographically the evolution of asymptomatic venous stasis changes of the optic disc in glaucoma, estimate their prevalence, and report the clinical findings. Asymptomatic venous miniocclusions were found to develop and occasionally disappear in the optic disc stereophotographs of nine patients with early to moderate glaucoma or ocular hypertension during a mean follow-up of 9 years. In the 1664 photographs examined, a prevalence of 3% was found. None of the patients had a history of retinal vein occlusion or venous stasis retinopathy. Progression of glaucomatous optic disc changes occurred in eight of nine patients. It is possible that asymptomatic miniocclusions are secondary to the changes at the bottom of the optic cup. The miniocclusions, which are easily missed if not looked for, may be an early indicator of glaucomatous progression of the optic disc cupping.
本研究旨在通过摄影记录青光眼患者视盘无症状性静脉淤滞变化的演变过程，估计其患病率，并报告临床发现。在平均9年的随访期间，在9例早至中度青光眼或高眼压症患者的视盘立体照片中发现无症状性静脉小阻塞会出现，偶尔也会消失。在检查的1664张照片中，发现患病率为3%。所有患者均无视网膜静脉阻塞或静脉淤滞性视网膜病变病史。9例患者中有8例出现青光眼性视盘变化进展。无症状性小阻塞可能继发于视杯底部的变化。这些小阻塞如果不仔细查找很容易被遗漏，可能是视盘杯状凹陷青光眼进展的早期指标。
