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Archivos de la Sociedad Española de Oftalmología
versión impresa ISSN 0365-6691
Resumen
AMAT-PERAL, P. et al. Photodynamic therapy with verteporfin in choroidal neovascularization after refractive surgery. Arch Soc Esp Oftalmol [online]. 2008, vol.83, n.9, pp.539-544. ISSN 0365-6691.
Purpose: To analyze the results obtained with Photodynamic Therapy (PDT) to treat subfoveal and juxtafoveal Choroidal Neovascularization (CNV) in patients with high myopia corrected by Laser-Assisted in situ Keratomileusis (LASIK) or by implanting a Phakic Intraocular Lens (PIOL). Methods: We analyzed the results from 14 highly myopic eyes corrected by LASIK (seven cases) or by PIOL implantation (seven cases), which later developed CNV and were treated by PDT with verteporfin. Results: Mean Best Corrected Visual Acuity (BCVA) after refractive surgery was 0.45 SD 0.17 (range, 0.2 to 0.8), with residual spherical equivalent (RSE) -0.5 SD 1.8 D (range, 1 to 5.5 D). After CNV appearance, BCVA was 0.10 SD 0.19 (range, 0.025 to 0.7). CNV was treated in all cases by PDT (mean, 2.0 SD 0.8 treatments). After CNV closure, the mean BCVA improved up to 0.22 SD 0.18 (range, 0.1 to 0.63) (RSE -1.4 SD 1.4 D, range, 0.5 to -4 D). Differences in RSE after refractive surgery and after PDT, and differences between BCVA after CNV appearance and final were not statistically significant (p=0.82 and p=0.06, respectively, Students t test paired data). Conclusion: We consider that PDT is effective in achieving closure of CNV in myopic patients after refractive surgery without inducing changes in spherical equivalent.
Palabras clave : Refractive surgery; choroidal neovascularization; photodynamic therapy; LASIK; phakic intraocular lens implantation; pathologic myopia; residual spherical equivalent.