[Evaluation of optical performance of soft contact lenses in myopic correction]. / Avaliação da qualidade óptica de lentes de contato gelatinosas na correção de miopia.
Arq Bras Oftalmol
; 71(6 Suppl): 37-41, 2008.
Article
em Pt
| MEDLINE
| ID: mdl-19274409
PURPOSE: To evaluate the optical performance of eyes fitted with two different soft contact lenses: Acuvue 2 (Vistacon J&J Vision Care Inc., USA) and World Vision Disposable Asférica Wave Front (World Vision Ophthalmic, Brazil). METHODS: An interventional prospective clinical trial studied a sample of 40 myopic patients (-0.75D to -4.50D, with or without astigmatism up to -0.75D). Each patient had one eye randomized to visual performance evaluation including high and low contrast visual acuities, wavefront analysis and contrast sensitivity. RESULTS: The Nidek OPD Scan detected a residual refraction (hypercorrection) for both contact lenses. High contrast visual acuity was significantly higher for World Vision soft contact lenses. Low contrast visual acuity was similar for both soft contact lenses. Contrast sensitivity improved significantly at 1.5; 3; 6 e 18 spatial frequencies for both soft contact lenses, but no difference was found between them. Regarding wavefront analysis, no difference was found between both soft contact lenses. There were not significantly differences in the Strehl indices and MTF for both soft contact lenses. CONCLUSION: World Vision Disposable Asférica Wave Front soft contact lenses had a better performance regarding high contrast visual acuity. However, low contrast visual acuity, wavefront analysis and contrast sensitivity were similar for both soft contact lenses.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Astigmatismo
/
Sensibilidades de Contraste
/
Lentes de Contato Hidrofílicas
/
Óculos
/
Miopia
Tipo de estudo:
Clinical_trials
/
Observational_studies
Limite:
Adolescent
/
Adult
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Female
/
Humans
/
Male
Idioma:
Pt
Revista:
Arq Bras Oftalmol
Ano de publicação:
2008
Tipo de documento:
Article
País de publicação:
Brasil