Publications by authors named "Omar Elhaddad"
Purpose: To assess the risk for pseudophakic cystoid macular oedema (PCME) and posterior capsular opacification (PCO) associated with combined cataract surgery and trabeculectomy compared to cataract surgery alone.
Methods: Data analysis of subjects who underwent routine cataract surgery without and with concomitant trabeculectomy at the Department of Ophthalmology, Bristol Eye Hospital, the UK, between January 2008 and December 2017. Odds ratios (ORs) for PCME between the types of surgeries were calculated using univariate and multivariate regression analysis.
Complications of pupil expansion devices: a large real-world study.
Front Ophthalmol (Lausanne)
December 2023
Purpose: To assess the risk for uveitis, pseudophakic cystoid macular edema (PCME), and posterior capsular opacification (PCO) associated with the use of pupil expansion devices in cataract surgery.
Design: A retrospective comparative cohort study.
Participants: Patients who underwent routine cataract surgery with and without pupil expansion devices at the Department of Ophthalmology, Bristol Eye Hospital, UK, between January 2008 and December 2017.
Objective: To assess the effect of diabetes type on Nd:YAG capsulotomy rates following cataract surgery.
Design: A retrospective cohort study.
Methods: All patients who underwent cataract extraction at the Department of Ophthalmology, Bristol Eye Hospital, Bristol, UK, between 2003 and 2017 were included.
Use of corneal cross-linking beyond keratoconus: a systemic literature review.
Graefes Arch Clin Exp Ophthalmol
September 2023
Article Synopsis
- The review investigates the effectiveness of corneal collagen cross-linking beyond its established use in progressive keratoconus.
- The analysis of 97 studies indicates that collagen cross-linking may help slow the progression of various corneal diseases, potentially minimizing the need for more invasive surgeries like keratoplasty.
- However, the overall evidence is limited, particularly for specific types of keratitis, making it essential to exercise caution and further study its safety and efficacy.
Purpose: We describe a modified technique for managing a peripheral, non-infected, corneal perforation using a "Sandwich" technique that combines posterior lamellar keratoplasty, an amniotic membrane patch and a Gundersen conjunctival flap.
Observations: A 75-year-old female patient presented with Sjogren's syndrome-related corneal perforation. A mini-Descemet stripping automated endothelial keratoplasty (DSAEK) graft (5 mm) was introduced into the anterior chamber and was mobilized to plug the perforation.
Intraocular lens power calculation in patients with irregular astigmatism.
Graefes Arch Clin Exp Ophthalmol
December 2022
Purpose: Accurate intraocular lens (IOL) calculation in subjects with irregular astigmatism is challenging. This study evaluated the accuracy of using Scheimpflug-derived central 2-mm equivalent keratometry reading (EKR) values for IOL calculation in irregular astigmatism.
Methods: This retrospective study included subjects (31 eyes of 30 patients) who underwent cataract surgery and IOL calculation using the 2-mm central EKR methods.
Purpose: We recently showed the positive clinical effects of combining accelerated corneal cross-linking (PACK-CXL) with antibiotic treatment in patients with presumed bacterial keratitis. In this study, we compare the impacts of a combined PACK-CXL/standard antibiotic treatment (PACK-ABX group) with standard antibiotic treatment alone (ABX group) in patients with culture-confirmed bacterial keratitis.
Methods: We reviewed patients with moderate and severe bacterial keratitis and confirmed bacterial cultures.
Objective: To assess potential methods of reducing visible aerosol generation during clear corneal phacoemulsification surgery in the era of Covid-19.
Methods: Aerosol generation during phacoemulsification was assessed using a model comprising a human cadaveric corneoscleral rim mounted on an artificial anterior chamber. Typical phacoemulsification settings were used and visible aerosol production was recorded using high-speed 4K camera.
Objective: To assess visible aerosol generation during simulated vitrectomy surgery.
Methods: A model comprising a human cadaveric corneoscleral rim mounted on an artificial anterior chamber was used. Three-port 25 gauge vitrectomy simulated surgery was performed with any visible aerosol production recorded using high-speed 4K camera.