Becker W, Talley A R, Logan S E, Young V L
Division of Plastic Surgery, Washington University School of Medicine.
Plast Reconstr Surg. 1989 Mar;83(3):421-8. doi: 10.1097/00006534-198903000-00002.
An experimental canine model for blindness following blepharoplasty was developed to demonstrate occlusion of retinal circulation resulting from simulated retrobulbar hematoma. Seven mongrel dogs were studied, monitoring retinal vascular patterns by funduscopic examination and intraocular pressure by pneumotonometry. Anterior chamber paracentesis was performed in five dogs 10 minutes after injecting blood retrobulbarly, with an immediate decrease in pressure and return of retinal blood flow. In two dogs without paracentesis, increased pressure and blindness persisted. Anterior chamber paracentesis has been shown to reduce intraocular pressure from hematoma of the retro-orbital area in dogs. Although controversial, anterior chamber paracentesis may represent a useful temporizing adjunct in the treatment of increased intraocular pressure and impaired vision from hematoma following blepharoplasty.
为了证明模拟球后血肿导致的视网膜循环阻塞，建立了一种睑成形术后失明的实验犬模型。对7只杂种犬进行了研究，通过眼底检查监测视网膜血管模式，并通过眼压计测量眼压。在球后注射血液10分钟后，对5只犬进行前房穿刺，眼压立即下降，视网膜血流恢复。在2只未进行前房穿刺的犬中，眼压升高和失明持续存在。前房穿刺已被证明可降低犬眶后血肿引起的眼压。尽管存在争议，但前房穿刺可能是治疗睑成形术后因血肿导致眼压升高和视力受损的一种有用的临时辅助方法。
