Intraocular straylight before and after low myopic photorefractive keratectomy with and without mitomycin C

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art_TORRICELLI_Intraocular_straylight_before_and_after_low_myopic_photorefractive_2016.PDF (152.74 KB)
Citações na Scopus
3
Tipo de produção
article
Data de publicação
2016
DOI
SciELO
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
CONSEL BRASIL OFTALMOLOGIA
Autores
PAREDE, Tais Renata Ribeiro
Citação
ARQUIVOS BRASILEIROS DE OFTALMOLOGIA, v.79, n.2, p.88-91, 2016
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Purpose: To evaluate ocular straylight before and after photorefractive keratectomy (PRK) for low myopia with and without topical mitomycin (MMC) treatment. Methods: Patients who underwent PRK for low myopia were enrolled into the study. PRK without MMC was performed in 21 eyes (12 patients), whereas PRK with topical 0.02% MMC was performed in 25 eyes (14 patients). Both groups were treated using the NIDEK EC5000 excimer laser. Measurements were performed using the C-Quant straylight meter preoperatively and at two and four months postoperatively. Results: The mean patient age was 30 +/- 4 years, and the mean spherical equivalent refractive error was -2.2 +/- 0.75 D. The mean preoperative intraocular straylight values were 1.07 +/- 0.10 in the PRK without MMC group and 1.07 +/- 0.11 log(s) in the PRK with topical MMC group. At two months after surgery, there was a decrease in mean intraocular straylight values in both groups. However, a significant difference was only reached in the PRK with MMC group [0.98 +/- 0.09 log(s), p=0.002] compared with preoperative values, which was likely due to a greater scatter of measurements in the PRK without MMC group [1.03 +/- 0.13 log(s), p=0.082]. At four months postoperatively, ocular straylight values were not significantly different compared with those at baseline in either the PRK without MMC group [1.02 +/- 0.14 log(s), p=0.26] or in the PRK with topical MMC group [1.02 +/- 0.11 log(s), p=0.13]. Conclusion: PRK for low myopia decreases ocular straylight, and MMC application further reduces straylight in the early postoperative period. However, ocular straylight values do not significantly differ at four months after surgery compared with those at baseline.
Palavras-chave
Photorefractive keratectomy, Myopia/surgery, Mitomycin, Wound healing
URI
https://observatorio.fm.usp.br/handle/OPI/16415
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Coleções
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - LIM/33