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Purpose: To compare refractive outcomes, visual acuities, and satisfaction of patients between those treated with laser-assisted in situ keratomileusis (LASIK) using a Hansatome microkeratome (HM) and femto-assisted laser (FAL).
Methods: This was a retrospective analysis of 1,366 eyes in 687 patients who underwent LASIK with an HM (n=1,137) and an FAL (n=229) at the two centers of Hashmanis Hospital, Karachi, Pakistan. Refractive outcomes, including sphere, cylinder, and spherical equivalent in diopters (D), and visual acuities were assessed both preoperatively and at 1 month follow-up. Patient satisfaction was gauged by contacting the patient at the time of chart review.
Results: The postoperative median sphere, cylinder, and spherical equivalent values for those treated with FAL were 0.3±0.7 (-5.5-1.8), -0.5±0.6 (-5.0-1.0), and 0.0±0.7 (-6.0-1.6), respectively. For the HM arm, they were 0.0±1.28 (-10.8-6.8), -0.5±0.5 (-4.5-1.5), and -0.3±1.3 (-11.6-6.8), respectively. All preoperative values were statistically insignificant between the groups, while postoperative values were significant with -values <0.001. Predictability and efficacy index was higher for the FAL (92.1%, 1.00) than the HM group (82.2%, 0.84). Similarly, patient satisfaction was slightly higher for those treated with FAL (93.3%) than HM (91.4%).
Conclusion: Our large retrospective analysis of eyes that have undergone LASIK using HM and FAL shows superior refractive outcomes in the latter, with special regard to procedural efficacy and predictability.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449167 | PMC |
http://dx.doi.org/10.2147/OPTH.S137451 | DOI Listing |
J Refract Surg
September 2025
Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio.
Purpose: To report a case of acute and transient accommodative insufficiency after laser in situ keratomileusis (LASIK) due to coronavirus disease 2019 (COVID-19).
Methods: Case report and literature review.
Results: A 36-year-old man complained of acute blurred near vision 7 days after uneventful bilateral hyperopic LASIK, concurrent with the onset of COVID-19 infection.
J Refract Surg
September 2025
The College of Medicine, Taibah University, Medina, Saudi Arabia.
Purpose: To present a case of synthetic intrastromal corneal ring segment (ICRS) intrusion secondary to necrosis and migration, managed by implantation of corneal allogenic intrastromal ring segments (CAIRS) within the preexisting tunnel.
Methods: A 24-year-old man with known keratoconus underwent bilateral ICRS implantation. He presented with blurred vision in the right eye 6 weeks after the procedure.
J Refract Surg
September 2025
Department of Refractive Surgery, Shanghai Aier Eye Hospital, Shanghai.
Purpose: To analyze the effects of ablation interruption on ablation depths and clinical refractive outcomes to characterize the impact of ambient temperature changes and ablation interruption on ocular surface temperature (OST) during excimer laser ablation.
Methods: This prospective study was conducted on laser ablations in polymethylmethacrylate (PMMA) plates and porcine corneas to simulate laser in situ keratomileusis (LASIK) treatments using the EX500 laser (Alcon Laboratories, Inc) at ambient temperatures of 18, 20, and 22 °C. Ablation interruption was performed for 1, 2, 3, 4, and 5 seconds at the 10th second of the treatment of -9.
J Refract Surg
September 2025
Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
Purpose: To evaluate axis-dependent visual and refractive outcomes of small incision lenticule extraction (SMILE) in patients with interocular astigmatic axis discordance.
Methods: Seventy-five patients (150 eyes) with interocular astigmatic axis discordance were included in the study. Based on interocular axis combinations, patients were stratified into three cohorts: with-the-rule (WTR)/against-the-rule (ATR) (n = 19), WTR/oblique astigmatism (OA) (n = 39), and ATR/OA (n = 17).
J Refract Surg
September 2025
Purpose: To discuss the technique and outcome of what the authors called the "flap-in-flap" technique and report its safety as a procedure for correction of post-laser in situ keratomileusis (LASIK) myopic regression.
Methods: Seven eyes of 4 patients were included in this study. All patients had previously undergone LASIK for compound myopic astigmatism using the Moria M2 micro-keratome (Moria) 8 to 12 years prior to presentation.