Wavefront and Visual Function Analysis After Aspherical and Spherical Intraocular Lenses Implantation
Journal of the Korean Ophthalmological Society
; : 1248-1255, 2008.
Article
em Ko
| WPRIM
| ID: wpr-172429
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE: To compare postoperative wavefront aberration and visual functions between aspherical Tecnis Z9003, a new acrylic aspheric intraocular lens (IOL), and spherical AcrySof SA60AT IOL. METHODS: Fifty patients (56 eyes) who underwent cataract extraction and were implanted with spherical or aspherical IOLs were randomly evaluated by wavefront analysis, including an examination of spherical aberration and higher-order aberrations using two different types of aberrometers (ray tracing and automatic retinoscope), manifested refraction, a contrast sensitivity test, and modulation transfer function (MTF), three months after surgery. RESULT: There were no statistically significant differences of spherical equivalent and best-corrected visual acuity between the two different IOL groups. However, the aspherical IOL group showed less spherical aberration and better contrast sensitivity and MTF than the spherical IOL group. CONCLUSIONS: Tecnis Z9003 could compensate for positive spherical aberrations of the cornea and improve contrast sensitivity and MTF, thereby improving visual function.
Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Sensibilidades de Contraste
/
Extração de Catarata
/
Acuidade Visual
/
Córnea
/
Lentes Intraoculares
Limite:
Humans
Idioma:
Ko
Revista:
Journal of the Korean Ophthalmological Society
Ano de publicação:
2008
Tipo de documento:
Article