ABSTRACT
PURPOSE: We compared the results of photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) for the correction of hyperopia. METHODS: Patients who underwent PRK or LASIK, under +6.00 diopters (D) hyperopia and under −2.00 D astigmatism were included. In total, 21 patients (38 eyes) underwent PRK surgery and 25 patients (41 eyes) underwent LASIK surgery. We compared the visual acuity, refractive error, safety, and efficacy between the two groups. RESULTS: The manifest refractive spherical equivalent (MRSE) of the PRK and LASIK groups at 1 and 3 months after surgery was significantly different between the two groups (p < 0.05). However, the MRSE was not significantly different at postoperative 6 and 12 months between the two groups. The uncorrected visual acuity (UCVA) of the PRK and LASIK groups at 1 month after surgery was significantly different between the two groups (p < 0.05). However, the UCVA was not significantly different at postoperative 3, 6, and 12 months between the two groups. The best-corrected visual acuity was not significantly different at postoperative 1, 3, 6, and 12 months between the two groups. The safety index was not significantly different between the two groups at postoperative 1, 3, 6, and 12 months. The efficacy index of the PRK group was lower than that of the LASIK group at 1 month after surgery. However, the efficacy index was not significantly different at postoperative 3, 6, and 12 months between the two groups. There was no statistically significant difference between the predictability of the two groups at postoperative 1 year. CONCLUSIONS: After PRK treatment, temporary myopic deviation was observed after 1 month, but there was no significant difference between the two treatments after 3 months of follow-up. In the correction of hyperopia, there was no significant difference between PRK and LASIK in efficacy or safety.
Subject(s)
Humans , Astigmatism , Follow-Up Studies , Hyperopia , Keratomileusis, Laser In Situ , Photorefractive Keratectomy , Refractive Errors , Visual AcuityABSTRACT
PURPOSE: To compare the efficacy of selective laser trabeculoplasty (SLT) in patients treated with either latanoprost or dorzolamide/timolol fixed combination (DTFC) for primary open-angle glaucoma. METHODS: This retrospective study included 92 consecutive patients who underwent a 180-degree SLT for the first time. The subjects divided into two groups:patients who received latanoprost (n = 63) or DTFC (n = 29) before and after SLT. The main outcome measure was intraocular pressure (IOP) decrease over five years after SLT. The mean IOP change, mean percentage of IOP reduction, and success rates were compared between the patients treated with latanoprost and the patients treated with DTFC. Success was defined as an IOP decrease ≥ 3 mm Hg or IOP reduction ≥ 20% without additional medications, laser surgery, or glaucoma surgery. RESULTS: At the postoperative one-year follow-up, the mean IOP was 15.7 ± 2.2 mm Hg in the latanoprost group and, 16.2 ± 2.4 mm Hg in the DTFC group. At the postoperative five-year follow-up, the mean IOP was 15.1 ± 2.5 mm Hg in the latanoprost group and, 14.6 ± 1.7 mm Hg in the DTFC group. There were no statistically significant differences in IOP change, percentage IOP reduction, or success rate between the groups at each time point after the SLT (p > 0.05). CONCLUSIONS: Selective laser trabeculoplasty showed a reasonable efficacy in lowering the IOP over a five-year follow-up period. There were no significant differences in IOP lowering effect or success rate between the patients treated with latanoprost or DTFC.