Publications by authors named "Mahmoud Rateb"
Background: Conventional mechanical or alcohol-assisted photorefractive keratectomy (PRK) techniques for correction of hyperopia and hyperopic astigmatism were associated with inconsistent results. The aim of this study is to evaluate the 12-month visual and refractive outcomes of the relatively new single-step transepithelial photorefractive keratectomy (TE-PRK) for moderate hyperopia and hyperopic astigmatism.
Methods: This is a prospective interventional study.
Purpose: To compare implantable collamer lenses (ICLs) and acrylic implantable phakic contact lenses (IPCLs) in the treatment of myopia in adults, as regards refractive outcome and adverse effects.
Methods: Prospective, randomized comparative study with phakic intraocular lenses (IOLs) was carried out for treatment of myopia. Patients were randomized into two groups: one for ICL and the other for IPCL.
Article Synopsis
- - The study aimed to assess how common multifocal choroiditis/punctate inner choroidopathy (MFC/PIC) is in patients with patchy atrophy due to pathologic myopia, analyzing 500 eyes from 253 patients between 2014 and 2020.
- - Results showed that 11% of the examined eyes exhibited signs of active MFC/PIC via optical coherence tomography, with notable features including specific retinal changes and a significant association with macular neovascularization.
- - The findings suggest that while only a small percentage of eyes with pathologic myopia exhibited active MFC/PIC lesions, these lesions may lead to further complications, like macular neovascularization, and can occur before
Performing phacoemulsification in eyes with corneal opacities is challenging even with expert surgeons. Several techniques have been described to improve intraoperative visualization through opacified corneas. This retrospective interventional case series included 10 eyes of 10 patients with coexisting senile cataract and corneal opacity who underwent phacoemulsification with intraocular lens (IOL) implantation under slit illumination of the surgical microscope.
View Article and Find Full Text PDFPurpose: To evaluate the ocular manifestations of post-acute COVID-19 syndrome.
Methods: A retrospective, comparative study included 100 patients who had recovered from COVID-19 and 100 controls who were recruited by stratified randomization from hospital registration system and analyzed regarding history, full ophthalmological examination, general examination including internal medicine and neurological evaluation. Laboratory tests were done.
Purpose: To quantify the intraoperative parameters and postoperative outcomes after using the phaco chop technique in one eye and drill-and-crack technique in the other eye in patients with bilateral dense brunescent cataract.
Methods: The Lens Opacities Classification System III grading system was used to select 132 eyes of 66 patients with bilateral nuclear opalescence (NO) grade NO4 or grade NO5. One eye in each patient with bilateral dense brunescent cataract was subjected to phacoemulsification using the phaco chop technique, while the other eye was subjected to phacoemulsification with the drill-and-crack technique for nucleus disassembly.
Purpose: To evaluate clinical efficacy of combined sulphur hexafluoride (SF6) gas tamponade and laser photocoagulation for optic disc pit maculopathy (ODPM).
Methods: Eleven eyes of nine patients with optic disc pit maculopathy were treated with intravitreal injection of 0.6 ml 100% sulphur hexafluoride (SF6) combined with laser photocoagulation treatment.
Purpose: To compare safety and efficacy between a low-cost glaucoma drainage device (GDD), the Aurolab aqueous drainage implant (AADI), and the Baerveldt glaucoma implant (BGI) in refractory childhood glaucoma in Egypt.
Methods: This is a retrospective study of patients who received either an AADI or BGI at a tertiary care postgraduate teaching institute. Children aged <16 years with uncontrolled intraocular pressure (IOP) with or without prior failed trabeculectomy who completed a minimum 6-month follow-up were included.
Purpose: To investigate the role of early and prolonged administration of aqueous suppressants in reduction of hyperencapsulation and intraocular pressure (IOP) control after paediatric Ahmed glaucoma valve (AGV) implantation.
Methods: A prospective randomized interventional study recruited children who had AGV implantation for paediatric glaucoma. All patients received postoperative Timolol 0.
Purpose: To evaluate the different IOP readings by Goldmann applanation tonometer (GAT), ICare rebound tonometer, and Tono-Pen in keratoconus patients after MyoRing implantation. To assess the influence of central corneal thickness (CCT) and thinnest corneal location (TCL) on IOP measurements by different tonometers.
Setting: Prospective observational study was conducted in two private centers in Egypt from February 2015 to November 2016.
Purpose: To evaluate the efficacy of switching to aflibercept in diabetic macular edema (DME) with suboptimal response to previous anti-vascular endothelial growth factor (anti-VEGF) injections.
Methods: A prospective interventional case series study recruited patients from a single center diagnosed with DME with suboptimal response to anti-VEGF injections. Three consecutive monthly injections of aflibercept were performed.
Purpose:: To compare surface alterations between preloaded and manually loaded intraocular lens.
Methods:: Scanning electron microscope was utilized to evaluate surface alteration and deposits in four different types of intraocular lenses: preloaded hydrophobic acrylic, preloaded hydrophilic acrylic, manually loaded hydrophobic acrylic, and manually loaded hydrophilic acrylic. Six lenses with different powers (+6 D, +22 D, and +29 D) were used from each category, to represent different thickness categories of the intraocular lenses.
Purpose: To compare neural canal opening (NCO) with the clinical optic disc margin (DM) seen and to investigate the planarity of the NCO in normal human optic nerve heads (ONH).
Methods: Sixteen eyes were imaged. Twelve healthy eyes were selected for planarity and 9 for NCO and DM correspondence.
Using multiple trabecular micro-bypass stents in cataract patients to treat open-angle glaucoma.
J Cataract Refract Surg
November 2012
Purpose: To evaluate the efficacy of multiple trabecular micro-bypass stents combined with cataract surgery in patients with open-angle glaucoma (OAG) and cataract.
Setting: Private practice, Mississauga, Ontario, Canada.
Design: Comparative case series.