بحوث سكوبس — نور خميس حمد الفلاحي

Purpose: To compare the surgical outcomes of Photorefractive Keratectomy (PRK), Femtosecond-LASIK (FSL), and Small Incision Lenticule Extraction (SMILE) in patients with myopia and myopic astigmatism. Study Design: Retrospective chart analysis. Place and Duration of Study: This study was conducted with a retrospective cohort design in myopia and myopic astigmatism patients from two clinics in Babylon, Iraq between February 2021 and March 2023. Method: Retrospective analysis of patients with myopia and myopic astigmatism who underwent kerato-refractive surgery were evaluated for pre-operative and post-operative refraction, corneal topography, and contrast sensitivity. Standardized laser protocols were used for surgery, with follow-ups at 30 days, 90 days, and 6 months. Results: This study included 217 eyes from 109 patients who had PRK, SMILE, and FSL. The patients in FS-LASIK group were older than other groups (p=0.013), while gender showed insignificant difference among the three methods (P=0.480). No statistically significant differences were observed in preoperative visual acuity (P=0.083), sphere (P=0.206), cylinder (P=0.278), or spherical equivalent (P=0.232) among the groups. After the surgery, all three groups showed significant improvements in best corrected visual acuity, spherical error, cylindrical error, and spherical equivalent (P < 0.001). Keratometry values and central corneal thickness significantly decreased in all groups (P < 0.001) after the surgery. Contrast sensitivity decline done month after the surgery but improved significantly by 6 months (P < 0.001). Conclusion: PRK, Femto-LASIK, and SMILE are all effective in managing myopia and myopic astigmatism, with significant improvements in visual acuity, refractive errors, and keratometry values across all groups. © 2025, Ophthalmological Society of Pakistan. All rights reserved.

Purpose: To report the visual and refractive characteristics and the prevalence of amblyopia in patients with different types of Duane's Retraction Syndrome (DRS). Method: This retrospective study was performed on hospital records of 582 DRS patients at Farabi Hospital, Iran, from 2012 to March 2022. Results: The mean age of patients was 19.4 ± 11.9 (range, 3–70) years [335 (57.6 %) females and 247 (42.4 %) males (P < .001)]. DRS type I, II, III, and IV were presented in 347 (59.6 %), 148 (25.4 %), 82 (14.1 %), and 5 (0.9 %) patients, respectively. There were 530 (91.1 %) patients with unilateral and 52 (8.9 %) with bilateral involvement. In the unilateral patients, the DRS eyes' corrected distance visual acuity (CDVA) and astigmatism were significantly worse than the Non-DRS Eyes (P < .001). The mean amount of all refractive and visual parameters in bilateral patients' right or left eyes was significantly lower than in unilateral patients' non-DRS eyes (all P < .05). Anisometropia was observed in 75(12.9 %) of the patients. Amblyopia was observed in 18.5 % (98 patients) and 36.5 % (19 patients) of unilateral and bilateral DRS patients, respectively (P < .001). In unilateral patients, amblyopia was found in 57 (16.4 %) patients with Type I, 22 (14.9 %) patients with Type II, 16 (19.5 %) patients with Type III, and 3 (60 %) patients with Type IV. Forty-four (37.6 %) of patients with amblyopia had anisometropia. Conclusion: This large-scale study indicates that DRS types differ in terms of refractive error, visual acuity, and the prevalence of amblyopia and anisometropia. Clinicians should be aware of the clinical features associated with different types of DRS. © 2023 Spanish General Council of Optometry