Publications by authors named "Mohamed Samy Abd ElAziz"

Background: Ocular surface disease (OSD) is a multifactorial and highly frequent problem. Inadequate or unstable tear film is the main cause, which leads to visual impairments. One of the primary causes of OSD is meibomian gland dysfunction (MGD), with a prevalence of 3.

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Background: Intrastromal corneal ring segments are widely adopted for keratoconus management. However, the complete ring (Myoring) was proposed to be superior in advanced cases. Myoring can be implanted either via femtoassisted or manual dissection techniques.

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Purpose: The aim of this study is to detect the incidence and nature of ocular complications encountered in chronic hepatitis C virus (HCV) patients treated with direct-acting antiviral drugs.

Methods: This study is a prospective follow-up study on 200 chronic HCV patients attending the Outpatient Hepatology Clinic of National Liver Institute who were indicated for direct-acting antiviral treatment (sofosbuvir, daclatasvir and ribavirin) in the period between January 2017 and December 2017 and referred to the Department of Ophthalmology of Menoufia University hospitals where full ophthalmological examinations were done at the first visit before the treatment, the second visit at the end of the treatment (3 months) and the third visit 3 months later (6 months). Follow-up for those patients was done by slit-lamp examination, IOP measurement by applanation tonometer, colored fundus photographs, fluorescein fundus angiography (FFA), optical coherence tomography.

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: To describe the clinical experience with intermediate uveitis at six Egyptian tertiary eye centers.: A multicenter retrospective chart review of all patients with intermediate uveitis seen at six ocular inflammation referral clinics in Egypt between January 2010 and January 2017.: The study included a total of 781 patients with intermediate uveitis.

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Background: To evaluate corneal biomechanical properties by the Ocular Response Analyzer (ORA) in non keratoconic patients underwent penetrating keratoplasty (PK).

Methods: Corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann- correlated intraocular pressure (IOPg), cornea-compensated IOP (IOPcc) using the ORA, and central graft thickness (CGT) were measured in 30 eyes at least two years after penetrating keratoplasty for non keratoconic indications. IOP using the Goldmann applanation tonometer (GAT) was also obtained after compensation for graft thickness and astigmatism.

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Purpose: To study anterior segment changes after implantation of a Keraring with a 355-degree arc length in central advanced keratoconus.

Methods: Thirty eyes of 22 patients with advanced central keratoconus (grade 3) and absent corneal scarring underwent femtosecond laser-assisted (VisuMax) implantation of a Keraring 355-degree arc length intrastromal corneal ring segment (ICRS) with a segment thickness of 300 μm. Comprehensive ocular evaluations were performed preoperatively and postoperatively to assess uncorrected distance visual acuity, corrected distance visual acuity, K1, K2, Kmax, corneal volume, anterior chamber depth, corneal elevations, and actual segment position 6 months after the procedure.

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Purpose: To study application of stromal lenticules extracted by femtolaser small incision lenticule extraction (SMILE) surgery as a surgical adjuvant to seal corneal perforations.

Methods: Corneal stromal lenticules obtained through SMILE surgery with central thickness 100 μm or more were fixed over corneal perforation sites using 10-0 nylon interrupted stitches with an overlying single layer of amniotic membrane. Seven patients who had been followed up for a minimum of 12 months were assessed using slit-lamp biomicroscopy, fluorescein stain, tonometry, and best spectacle-corrected visual acuity (BSCVA) measurements.

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Purpose: The purpose of this study was to evaluate the longevity results of modified Hughes procedure in reconstructing large lower eyelid defects.

Background: The modified Hughes procedure was used to reconstruct large full-thickness lower eyelid defects. Meanwhile, the functional results indicated that ocular surface health in the treated eyes may be affected.

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