The Recovery of Optical Quality after Laser Vision Correction
Korean Journal of Ophthalmology
;
: 249-255, 2013.
Artigo
em Inglês
| WPRIM
| ID: wpr-121606
ABSTRACT
PURPOSE:
To evaluate the optical quality after laser in situ keratomileusis (LASIK) or serial photorefractive keratectomy (PRK) using a double-pass system and to follow the recovery of optical quality after laser vision correction.METHODS:
This study measured the visual acuity, manifest refraction and optical quality before and one day, one week, one month, and three months after laser vision correction. Optical quality parameters including the modulation transfer function, Strehl ratio and intraocular scattering were evaluated with a double-pass system.RESULTS:
This study included 51 eyes that underwent LASIK and 57 that underwent PRK. The optical quality three months post-surgery did not differ significantly between these laser vision correction techniques. Furthermore, the preoperative and postoperative optical quality did not differ significantly in either group. Optical quality recovered within one week after LASIK but took between one and three months to recover after PRK. The optical quality of patients in the PRK group seemed to recover slightly more slowly than their uncorrected distance visual acuity.CONCLUSIONS:
Optical quality recovers to the preoperative level after laser vision correction, so laser vision correction is efficacious for correcting myopia. The double-pass system is a useful tool for clinical assessment of optical quality.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Complicações Pós-Operatórias
/
Acuidade Visual
/
Estudos Prospectivos
/
Resultado do Tratamento
/
Ceratectomia Fotorrefrativa
/
Recuperação de Função Fisiológica
/
Ceratomileuse Assistida por Excimer Laser In Situ
/
Miopia
Tipo de estudo:
Estudo observacional
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Korean Journal of Ophthalmology
Ano de publicação:
2013
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS