Two cases of ultrathin Descemet stripping automated endothelial keratoplasty utilizing a graft that had undergone radial keratotomy.
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Date
2016-02
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Abstract
This is a report of two cases in which tissue that had undergone
radial keratotomy (RK) was utilized for double‑pass ultrathin
Descemet stripping automated endothelial keratoplasty
(UT‑DSAEK). Postoperative slit‑lamp examination, visual acuity,
anterior segment optical coherence tomography, and specular
microscopy were available 30 months after surgery. Both
corneas from a donor, who had undergone RK several years
before his demise, and were otherwise suitable for endothelial
keratoplasty were prepared for UT‑DSAEK using double‑pass
dissection using first a 300 μm microkeratome head and then
a 130 μm microkeratome head (ALTK system, Moria, Antony,
France). After the second cut, the tissue was punched to 9.0 mm
and transplanted in two eyes with endothelial decompensation
according to standard technique. As early as 3 months after
surgery, both patients had 20/25 best‑corrected visual acuity,
which remained stable for the following 27 months. Postoperative
endothelial cell loss was 34% and 57% at 2.5 years. In conclusion,
post‑RK donor tissue can be used for UT‑DSAEK.
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Keywords
Cornea, descemet stripping automated endothelial keratoplasty, lamellar keratoplasty, radial keratotomy, refractive surgery
Citation
Nahum Yoav, Ponzin Diego, Busin Massimo. Two cases of ultrathin Descemet stripping automated endothelial keratoplasty utilizing a graft that had undergone radial keratotomy. Indian Journal of Ophthalmology. 2016 Feb; 64(2): 162-164.