Optical analysis of PresbyLASIK treatment by a light propagation algorithm
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Título: | Optical analysis of PresbyLASIK treatment by a light propagation algorithm |
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Autor/es: | Ortiz Márquez, Dolores | Alió y Sanz, Jorge L. | Illueca Contri, Carlos | Mas, David | Sala Pomares, Esperanza | Pérez Rodríguez, Jorge | Espinosa, Julián |
Grupo/s de investigación o GITE: | Óptica y Ciencias de la Visión |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Algoritmo de propagación | PresbyLasik | Cirugía presbicia |
Área/s de conocimiento: | Óptica | Oftalmología |
Fecha de publicación: | ene-2007 |
Editor: | SLACK Incorporated |
Cita bibliográfica: | ORTIZ MÁRQUEZ, Dolores, et al. “Optical analysis of PresbyLASIK treatment by a light propagation algorithm”. Journal of Refractive Surgery. Vol. 23, No. 1 (Jan. 2007). ISSN 1081-597X, pp. 39-44 |
Resumen: | PURPOSE: To evaluate the changes in the optical quality of corneas of hyperopic patients operated using central multifocal presbyLASIK treatment through the study of light patterns around the retinal plane. METHODS: This study included eight hyperopic eyes that underwent central presbyLASIK surgery with Presby-one software using an H. Eye Tech Technovision excimer laser platform. Mean patient age was 57 years. Mean preoperative spherical equivalent refraction was 1.28_0.87 diopters (D). Mean distance decimal visual acuity with correction was 1.02_0.13 and without correction was 0.37_0.15. The optical quality was characterized by the Strehl ratio, the spot size on the retina, and objective decimal visual acuity calculated based on measured corneal topography using Fresnel propagation algorithm based on a realistic eye model. RESULTS: The postoperative spherical equivalent refraction was _0.55_0.48 D. The distance decimal visual acuity with correction was 0.94 and without correction was 0.70. The pseudoaccommodation range was 1.60_0.40 D. A good Pearson correlation coeffi cient was obtained (r2=0.86) for the linear fi t between the real and calculated decimal visual acuity for the eight eyes. The Strehl ratio value on the retinal plane increased after the surgery by a mean factor of 4.7. CONCLUSIONS: With a complete characterization of the eye and a complete propagation algorithm (that takes into account all refractive surfaces in the eye at the same time), it is possible to evaluate the optical quality in eyes of patients who have undergone central presbyLASIK treatment. |
Patrocinador/es: | Conselleria de Empresa, Universitat i Ciència of the Generalitat Valenciana, through the project nr. GV04A/578, and by the Ministerio de Educación y Ciencia through the project nr. FIS2005-05053. Spanish Ministry of Health, Instituto Carlos III, Red Temática de Investigación en Oftalmologia, Subproyecto de Cirugia Refractiva y Calidad Visual (C03/13) and by a grant from the Spanish Generalitat Valenciana, ref: Grupos05/036 Grants and Support for scientific research and technological development in the Comunidad Valenciana for the year 2005 |
URI: | http://hdl.handle.net/10045/4313 |
ISSN: | 1081-597X |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © SLACK Incorporated (http://www.journalofrefractivesurgery.com/) |
Revisión científica: | si |
Aparece en las colecciones: | INV - IMAOS+V - Artículos de Revistas |
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