Department of Experimental Surgery, Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
Acta Ophthalmol. 2023 Mar;101(2):242-243. doi: 10.1111/aos.15297.
Corneal blindness is a leading cause of visual impairment worldwide. The most common treatment is to replace the diseased cornea with standard corneal transplantation. In eyes at high risk of graft failure, the Boston keratoprosthesis type 1 (KPro) can be used to restore vision and is currently the most frequently used artificial cornea in the world. However, glaucoma is a well-known complication of KPro surgery and is the most important threat to vision in KPro-implanted eyes. This chronic disease is influenced by elevated intraocular pressure (IOP) and damages the optic nerve, leading to progressive vision loss. In KPro patients, glaucoma is highly prevalent and extremely challenging to manage, yet its exact cause remains unknown.
角膜盲是全球范围内导致视力损害的主要原因。最常见的治疗方法是用标准的角膜移植来替换病变的角膜。在有高风险移植物失败的眼睛中,可以使用波士顿 1 型角膜假体(KPro)来恢复视力,目前它是世界上使用最频繁的人工角膜。然而,青光眼是 KPro 手术的一个众所周知的并发症,也是 KPro 植入眼中对视力最重要的威胁。这种慢性疾病受眼内压(IOP)升高的影响,并损害视神经,导致视力逐渐丧失。在 KPro 患者中,青光眼的患病率很高,且极难控制,但确切病因仍不清楚。