Laser intrastromal keratoplasty - Case report

Laser intrastromal keratoplasty - Case report

Author Jankov, Mirko Google Scholar
Mrochen, Michael Google Scholar
Seiler, Theo Google Scholar
Institution Inst Oftalmol Curitiba
ETH
Universidade Federal de São Paulo (UNIFESP)
Univ Spital Zurich
Abstract PURPOSE: To evaluate the feasibility of correcting high hyperopia by means of;intrastromal implantation of a laser shaped corneal lenticule prepared from a human donor eye.METHODS: A female patient with high hyperopia and irregular astigmatism resulting from multiple laser in situ keratomileusis procedures and lamellar keratoplasty underwent laser intrastromal keratoplasty. Her preoperative uncorrected visual acuity (UCVA) was 20/300 and best spectacle-corrected visual acuity (BSCVA) was 20/100 with a refraction of +8.00 -1.00 x 130degrees. Corneal topography showed a highly irregular corneal surface. Central corneal thickness was 398 jam. Lenticule preparation included mechanical de-epithelialization of a human donor eye, keratectomy with a microkeratome, user-designed software combining a photorefractive keratectomy (PRK) treatment for +8.00 D sphere, an ablation zone of 7.0 mm, and a circumferential cut (internal diameter of 6.5 mm) for tissue ablation. Implantation involved re-lifting the flap, positioning the lenticule onto the corneal bed, and repositioning of the flap.RESULTS: The operation was uneventful as was the early postoperative follow-up. BSCVA improved to 20/50 with +1.00 -2.25 x 120degrees at 2 months postoperatively. Corneal topography showed a more regular cornea with increased curvature in all meridians. Central corneal thickness increased to 600 jam.CONCLUSION: Laser intrastroma keratoplasty may be an option for correcting high hyperopa and irregular astigmatism in eyes with a thin corneal bed.
Language English
Date 2004-01-01
Published in Journal Of Refractive Surgery. Thorofare: Slack Inc, v. 20, n. 1, p. 79-84, 2004.
ISSN 1081-597X (Sherpa/Romeo, impact factor)
Publisher Slack Inc
Extent 79-84
Origin http://dx.doi.org/10.3928/1081-597X-20040101-14
Access rights Closed access
Type Article
Web of Science ID WOS:000188363700012
URI http://repositorio.unifesp.br/11600/44608

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