Abstract | PURPOSE: METHODS: Retrospective review of KPro procedures performed by a single surgeon from May 1, 2004, to January 1, 2015. RESULTS: One hundred seventy-three KPro procedures were performed in 149 eyes, including 68 in 54 eyes with LSCD. Glaucoma (48% vs. 82%, P < 0.0001) and a history of ≥2 keratoplasties (39% vs. 79%, P < 0.0001) were significantly less common in eyes with LSCD. Preoperative corrected distance visual acuity was ≥20/200 in 7% of eyes with LSCD and 9% of eyes without LSCD. A significantly greater percentage of eyes with LSCD had CDVA ≥ 20/200 at each of the first 5 years after surgery. The only postoperative complication more common in eyes with LSCD compared with eyes without was persistent corneal epithelial defect (50% vs. 28%, P = 0.013), although the associated secondary complications sterile corneal necrosis (22% vs. 11%, P = 0.059) and corneal infiltrate (20% vs. 10%, P = 0.08) were twice as common in eyes with LSCD. Despite this, the retention failure rates in eyes with and without LSCD were similar (0.089/eye-yr vs. 0.071/eye-yr; P = 0.53). CONCLUSIONS: Boston type I keratoprosthesis implantation results in a significant improvement in CDVA in the majority of eyes with LSCD through 5 years after surgery, with better visual outcomes than eyes without LSCD. Although several postoperative complications are more common in LSCD, sight-threatening complications such as endophthalmitis and retinal detachment are not. Additionally, there is no difference in the retention failure rate in eyes with and without LSCD, although a larger number of procedures with longer follow-up will be needed to determine retention outcomes more than 5 years after surgery.
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Authors | Carolina Aravena, Tahir Kansu Bozkurt, Fei Yu, Anthony J Aldave |
Journal | Cornea
(Cornea)
Vol. 35
Issue 9
Pg. 1156-64
(Sep 2016)
ISSN: 1536-4798 [Electronic] United States |
PMID | 27387566
(Publication Type: Journal Article)
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Topics |
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Artificial Organs
- Bioprosthesis
- Child
- Cornea
- Corneal Diseases
(physiopathology, surgery)
- Female
- Follow-Up Studies
- Graft Survival
- Humans
- Limbus Corneae
(pathology)
- Male
- Middle Aged
- Postoperative Complications
- Prostheses and Implants
- Prosthesis Implantation
- Retrospective Studies
- Treatment Outcome
- Vision Disorders
(rehabilitation)
- Visual Acuity
(physiology)
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