Influence of the Difference Between Corneal and Refractive Astigmatism on LASIK Outcomes Using Solid-State Technology
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Título: | Influence of the Difference Between Corneal and Refractive Astigmatism on LASIK Outcomes Using Solid-State Technology |
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Autor/es: | Piñero, David P. | Ribera Vicent, David | Pérez Cambrodí, Rafael J. | Ruiz Fortes, Pedro | Blanes Mompó, Francisco J. | Alzamora Rodríguez, Antonio | Artola, Alberto |
Grupo/s de investigación o GITE: | Grupo de Óptica y Percepción Visual (GOPV) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | LASIK | Ocular residual astigmatism | Posterior corneal astigmatism | Solid-state laser | Pulzar | Myopia |
Área/s de conocimiento: | Óptica |
Fecha de publicación: | dic-2014 |
Editor: | Lippincott, Williams & Wilkins |
Cita bibliográfica: | Cornea. 2014, 33(12): 1287-1294. doi:10.1097/ICO.0000000000000272 |
Resumen: | Purpose: To evaluate the influence of the difference between preoperative corneal and refractive astigmatism [ocular residual astigmatism (ORA)] on outcomes obtained after laser in situ keratomileusis (LASIK) surgery for correction of myopic astigmatism using the solid-state laser technology. Methods: One hundred one consecutive eyes with myopia or myopic astigmatism of 55 patients undergoing LASIK surgery using the Pulzar Z1 solid-state laser (CustomVis Laser Pty Ltd, currently CV Laser) were included. Visual and refractive changes at 6 months postoperatively and changes in ORA and anterior corneal astigmatism and posterior corneal astigmatism (PCA) were analyzed. Results: Postoperatively, uncorrected distance visual acuity improved significantly (P < 0.01). Likewise, refractive cylinder magnitude and spherical equivalent were reduced significantly (P < 0.01). In contrast, no significant changes were observed in ORA magnitude (P = 0.81) and anterior corneal astigmatism (P = 0.12). The mean overall efficacy and safety indices were 0.96 and 1.01, respectively. These indices were not correlated with preoperative ORA (r = −0.15, P = 0.15). Furthermore, a significant correlation was found between ORA (r = 0.81, P < 0.01) and PCA postoperatively, but not preoperatively (r = 0.12, P = 0.25). Likewise, a significant correlation of ORA with manifest refraction was only found postoperatively (r = −0.38, P < 0.01). Conclusions: The magnitude of ORA does not seem to be a predictive factor of efficacy and safety of myopic LASIK using a solid-state laser platform. The higher relevance of PCA after surgery in some cases may explain the presence of unexpected astigmatic residual refractive errors. |
URI: | http://hdl.handle.net/10045/46558 |
ISSN: | 0277-3740 (Print) | 1536-4798 (Online) |
DOI: | 10.1097/ICO.0000000000000272 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2014 by Lippincott Williams & Wilkins |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1097/ICO.0000000000000272 |
Aparece en las colecciones: | INV - GOPV - Artículos de Revistas |
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2014_Pinero_etal_Cornea_LASIK_final.pdf | Versión final (acceso restringido) | 460,2 kB | Adobe PDF | Abrir Solicitar una copia |
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