Authors: Cristina Bostan, Andrei Alexandru Szigiato, Taylor Nayman, Mona H. Dagher
Author Disclosure Block: C. Bostan: None. A. Szigiato: None. T. Nayman: None. M. H. Dagher: None.

Abstract Body:

Purpose: To evaluate long-term outcomes of bilateral Boston keratoprosthesis type I (KPro).
Study Design: Retrospective interventional case series.
Methods: Were included all 11 patients who underwent bilateral sequential KPro at a mean of 14±6 months interval with a total of 62±3 months of follow-up. First (1st) and second (2nd) operated eyes were compared with respect to visual acuity (VA), complications and retention rates.
Results: The most common indication for KPro was aniridia (67%). Preoperative and 5-year VA did not differ between 1st and 2nd operated eyes. Best VA achieved was also similar but was reached faster in the 2nd eye (p<0.05). Although initially after 2nd surgery the 2nd eye had equal or better VA compared to the 1st eye in 55% of patients, it did so in only 37% at 5 years. Complications and device retention were similar in both eyes. The total number of complications per patient increased significantly with 2nd surgery, however (p<0.05).
Conclusions: The long-term benefit of a 2nd contralateral KPro for bilateral corneal blindness appears limited.