TY - JOUR
T1 - Laser in situ keratomileusis to correct post-keratoplasty astigmatism
T2 - 1-Step versus 2-step procedure
AU - Alió, Jorge L.
AU - Javaloy, Jaime
AU - Osman, Amr A.
AU - Galvis, Virgilio
AU - Tello, Alejandro
AU - Haroun, Hazem E.
N1 - Funding Information:
Supported in part by the Spanish Ministerio de Sanidad, Red Temática de Investigación Cooperativa en Oftalmologı́a, Subproyecto de Cirugı́a Refractiva, Calidad de Visión C03/13.
PY - 2004/11
Y1 - 2004/11
N2 - Purpose: To investigate the correction of post-penetrating keratoplasty (PKP) astigmatism using laser in situ keratomileusis (LASIK). Visual and refractive outcomes were evaluated after LASIK was performed in 1 step (lamellar cut and ablation in 1 procedure) or 2 steps (lamellar cut then ablation in 2 successive procedures). Setting: Department of Cornea and Refractive Surgery, Vissum-Instituto Oftalmológico de Alicante, University of Miguel Hernández, Alicante, Spain. Methods: In this prospective observational study, 22 consecutive eyes were divided into 2 groups depending on the LASIK procedure performed to correct post-PKP astigmatism. Group 1 (1-step LASIK) included 11 eyes and Group 2 (2-step LASIK), 11 eyes. The patients were followed for 6 months. Results: A statistically significant improvement was obtained in Group 2 with a mean vector analysis result of the cylinder of -4.37 diopters (D) ± 1.79 (SD) (P = .018). In Group 1, the mean astigmatism correction was 2.38 ± 1.71 D. The number of reoperations and residual refractive defects were significantly better in Group 2. Conclusion: The 2-step technique improved the accuracy of excimer laser correction of post-PKP astigmatism.
AB - Purpose: To investigate the correction of post-penetrating keratoplasty (PKP) astigmatism using laser in situ keratomileusis (LASIK). Visual and refractive outcomes were evaluated after LASIK was performed in 1 step (lamellar cut and ablation in 1 procedure) or 2 steps (lamellar cut then ablation in 2 successive procedures). Setting: Department of Cornea and Refractive Surgery, Vissum-Instituto Oftalmológico de Alicante, University of Miguel Hernández, Alicante, Spain. Methods: In this prospective observational study, 22 consecutive eyes were divided into 2 groups depending on the LASIK procedure performed to correct post-PKP astigmatism. Group 1 (1-step LASIK) included 11 eyes and Group 2 (2-step LASIK), 11 eyes. The patients were followed for 6 months. Results: A statistically significant improvement was obtained in Group 2 with a mean vector analysis result of the cylinder of -4.37 diopters (D) ± 1.79 (SD) (P = .018). In Group 1, the mean astigmatism correction was 2.38 ± 1.71 D. The number of reoperations and residual refractive defects were significantly better in Group 2. Conclusion: The 2-step technique improved the accuracy of excimer laser correction of post-PKP astigmatism.
UR - http://www.scopus.com/inward/record.url?scp=7044233122&partnerID=8YFLogxK
U2 - 10.1016/j.jcrs.2004.04.048
DO - 10.1016/j.jcrs.2004.04.048
M3 - Artículo Científico
C2 - 15519079
AN - SCOPUS:7044233122
SN - 0886-3350
VL - 30
SP - 2303
EP - 2310
JO - Journal of Cataract and Refractive Surgery
JF - Journal of Cataract and Refractive Surgery
IS - 11
ER -