, Volume 54, Issue 6, pp 537-543
Date: 28 Jan 2011

Simultaneous deep anterior lamellar keratoplasty and limbal allograft in bilateral limbal stem cell deficiency

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Abstract

Purpose

To report the efficacy of simultaneous keratolimbal allograft (KLAL) surgery and deep anterior lamellar keratoplasty (DALK) for limbal stem cell deficiency (LSCD).

Methods

We conducted a retrospective, interventional case series of six consecutive eyes of five patients with LSCD and stromal opacity due to gelatinous drop-like dystrophy (two eyes), Stevens-Johnson syndrome (SJS, two eyes), or aniridia (two eyes). Only patients with normal lid anatomy and Schirmer test values greater than 3 mm were enrolled. DALK was performed by viscodissection followed by a thin, 360° KLAL designed by using an artificial anterior chamber. KLAL sutures were removed after 2 weeks.

Results

DALK and KLAL were successfully performed in all eyes, which were followed for an average of 17.2 ± 10.8 months. All eyes recovered a smooth corneal epithelium, although one SJS patient developed a persistent epithelial defect (PED) leading to opacification of the central cornea. Visual acuity improved by more than 2 lines in all eyes except that of the SJS patient with PED. No other complications were observed.

Conclusion

Simultaneous DALK and thin-section KLAL is an effective treatment for ocular surface disease in patients with residual tear function and normal lid anatomy.