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Comparision of primary Boston Type I keratoprosthesis outcomes in high risk cases and non high risk cases
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First Author: V.Lazaro SPAIN
Co Author(s): V. Lázaro-Rodríguez M. Fideliz De la Paz
Abstract Details
Purpose:
The purpose of this study is to describe the outcome of patients with Boston type 1 keratoprosthesis as primary procedure in high risk cases and compare it to the non-high risk cases.
Setting:
Cornea and Anterior Segment unit, Barraquer Ophthalmology Centre, Barcelona.
Methods:
Restrospective case series of patients who underwent primary type I Boston keratoprosthesis surgery at Barraquer Ophtalmology Centre between June 2006 and June 2019. Of the 130 cases reviewed, twenty-four eyes of 23 patients were included for this study. Twelve eyes were classified in the high risk group (HRG) and 12 eyes in the non-high-risk group (NHRG). A high-risk was defined as autoimmune disease, chemical burn or congenital aniridia. Visual acuity, prosthesis retention and complication rates were evaluated and compared between both groups.
Results:
The mean age was 48 years in HRG and 59 in NHRG. The mean follow-up time was 39 months in HRG and 36 months in NHRG. Mean best achieved logMAR VA was 0,99 in HRG and 1,66 in NHRG. Mean final logMAR BCVA was 1,37 in HRG and 1,86 in NHRG. The following complications were comparable in both groups: retroprosthetic membrane (50%), infection (25%) and retinal detachment (8,33%). In HRG: de novo glaucoma and extrusion (16%), and melting and endophthalmitis (8,33%). In NHRG: extrusion (8,33%), and there were no cases of de novo glaucoma, endophthalmitis and melting of the keratoprosthesis.
Conclusions:
Boston Type 1 keratoprosthesis as a primary procedure is a valid option for visual rehabilitation in high risk cases. Final visual acuity results and prosthesis retention were comparable in both groups. High risk cases presented a higher rate of melting, de novo glaucoma and endophthalmitis than non-high-risk cases.
Financial Disclosure:
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