Intraocular straylight before and after low myopic photorefractive keratectomy with and without mitomycin C
| Autor: | Marcelo V. Netto, Tais Renata Ribeiro Parede, Samir J. Bechara, Andre A.M. Torricelli, Francisco Penteado Crestana |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Refractive error medicine.medical_specialty Corneal Wavefront Aberration Mitomicina Light genetic structures Mitomycin medicine.medical_treatment Wound healing Administration Ophthalmic Spherical equivalent Photorefractive Keratectomy Myopia/surgery Corneal Diseases 03 medical and health sciences 0302 clinical medicine lcsh:Ophthalmology Ocular straylight Patient age Ophthalmology Myopia Photorefractive keratectomy Humans Scattering Radiation Medicine Postoperative Period 030212 general & internal medicine business.industry Mitomycin C Significant difference General Medicine Middle Aged medicine.disease Ceratectomia fotorrefrativa eye diseases Surgery Cross-Linking Reagents lcsh:RE1-994 Miopia/cirurgia 030221 ophthalmology & optometry Female Lasers Excimer sense organs Cicatrização business |
| Zdroj: | Arquivos Brasileiros de Oftalmologia v.79 n.2 2016 Arquivos brasileiros de oftalmologia Conselho Brasileiro de Oftalmologia (CBO) instacron:CBO Arquivos Brasileiros de Oftalmologia, Vol 79, Iss 2, Pp 88-91 (2016) |
| ISSN: | 0004-2749 |
| DOI: | 10.5935/0004-2749.20160027 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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