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Abstract #99436 Published in IGR 23-1
Long-term outcomes of Boston keratoprosthesis type I: the Chinese People's Liberation Army General Hospital experience
Wang LQ; Wu TY; Chen XN; Xu ZQ; Yang M; Xiang R; Ma X; Zhang S; Huang YFBritish Journal of Ophthalmology 2022; 106: 781-785
PURPOSE: To report the long-term outcomes of Boston keratoprosthesis type I (B-KPro type I) implantation in the management of severe ocular surface disorders. METHODS: Retrospective case series. Patients who underwent B-KPro type I implantation at the People's Liberation Army General Hospital were enrolled between March 2011 and September 2019. Data regarding visual acuity (VA), B-KPro type I retention and postoperative complications were recorded and analysed. RESULTS: A total of 103 eyes of 100 patients who underwent B-KPro type I implantation were included. The main indications were chemical burn (59.2%), ocular trauma (25.2%), herpetic keratitis (11.7%) and autoimmune diseases (3.9%). The percentage of eyes with postoperative VA of 10/200 or better was 82.7% at 6 months, 82.8% at 12 months, 77.9% at 2 years, 72.4% at 3 years, 71.1% at 4 years, 69.4% at 5 years, 58.9% at 6 years, 56.8% at 7 years and 42.9% at 8 years. Preoperatively, 8.7% eyes were diagnosed with new-onset glaucoma. Retroprosthetic membrane formation occurred in 19.4% eye. Corneal melting occurred in 18.4% eyes. Sterile vitritis was diagnosed in 4.9% eyes and infectious endophthalmitis in 2.9% eyes. Retinal detachment occurred in 0.9% eyes. CONCLUSIONS: In a Chinese patient group, B-KPro type I is a viable option for treating severe ocular surface disorders in eyes where conventional keratoplasty would have a poor prognosis, especially in patients with chemical and thermal burns. Improved visual outcomes and high retention rate can be achieved and maintained in most cases.
Department of Ophthalmology, General Hospital of People's Liberation Army, Beijing, China 301yk@sina.com liqiangw301@163.com.
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