Can J Ophthalmol
October 2018
Objective: To report the outcomes and complications of combined photorefractive keratectomy (PRK) and collagen crosslinking (CXL).
Design: A retrospective cohort study of consecutive patients undergoing combined PRK-CXL between 2011 and 2013 at Care Laser, Inc, Tel Aviv, Israel.
Participants: Ninety-eight eyes of 56 patients were included.
Purpose: To analyze the risk factors associated with a series of ectasia cases following photorefractive keratectomy (PRK) and all published cases.
Methods: In a retrospective study on post-PRK ectasia patients, 9 eyes of 7 patients were included, in addition to 20 eyes of 13 patients from the literature. Risk of post-PRK ectasia was calculated using the ectasia risk score system (ERSS) for laser in situ keratomileusis (LASIK) patients.
Purpose: Scanning laser polarimetry provides indirect measurements of retinal nerve fiber layer thickness by measuring the retardation of polarized laser light as it passes through the retinal nerve fiber layer. Laser-assisted in situ keratomileusis is a refractive technique by which corneal stromal photoablation is achieved by the structural and refractive changes induced by the excimer laser. Both techniques are becoming widely performed and there is some evidence that scanning laser polarimetry measurements are significantly changed after laser-assisted in situ keratomileusis.
View Article and Find Full Text PDFPurpose: To evaluate the efficacy and safety of laser in situ keratomileusis (LASIK) for myopic regression and undercorrection after photorefractive keratectomy (PRK).
Setting: The Eye Institute, Sydney, Australia.
Methods: Fifty eyes of 32 patients were treated by LASIK for residual myopia following primary PRK.