Objective: To study the safety and efficacy of intravitreal infliximab administered at the conclusion of pars plana vitrectomy (PPV) in the treatment of proliferative vitreoretinopathy (PVR) associated with rhegmatogenous retinal detachment (RRD).
Design: Randomized controlled phase II clinical trial.
Subjects: Patients with primary RRD and grade C PVR, according to the updated Retina Society Classification.
Purpose: To characterize the relationship between diabetic macular ischemia (DMI) delineated by optical coherence tomography angiography (OCTA) and microaneurysms (MAs) identified by fundus fluorescein angiography (FFA).
Methods: Patients with diabetic retinopathy (DR) who underwent OCTA and FFA were retrospectively identified. FFA images were cropped and aligned with their respective OCTA images using i2k Align Retina software (Dual-Align, Clifton Park, NY, USA).
Journal of academic librarianship
March 2022
The appearance of the coronavirus pandemic had several implications on the educational process, which caused students, at all educational levels, to resort to digital libraries as the available educational opportunity in this challenging time. This study sheds light on the Egyptian Knowledge Bank (EKB) as one of the largest digital libraries in the world. It empirically evaluates the EKB, using the updated Information Systems Success (ISS) model proposed by DeLone and McLean (2003), among postgraduate business students in the context of Egyptian universities with a sample of 245 students.
View Article and Find Full Text PDFPurpose: To identify biomarkers that may predict an early anatomical response to the treatment of diabetic macular edema (DME) with intravitreal bevacizumab (IVB) by means of optical coherence tomography angiography (OCTA).
Methods: This study is a retrospective study of treatment-naïve patients with DME who underwent 6 × 6 mm OCTA imaging of the macula at baseline and after three monthly IVB injections. Thirty-six eyes of 23 patients were included.
We describe the new technique of chandelier-assisted pneumatic retinopexy in repairing rhegmatogenous retinal detachments in a series of young adults. In the operating room, a 25-gauge trocar cannula is inserted at the pars plana 180° across the preoperatively detected retinal break followed by Chandelier light insertion, which is used in globe fixation and rotation. The retinal periphery is reexamined using scleral indentation and chandelier light endoillumination.
View Article and Find Full Text PDFBackground: Diabetic macular edema (DME) is a major cause of vision loss in diabetics worldwide. Anti-vascular endothelial growth factor (anti-VEGF) agents have become the mainstay of treatment of vision loss due to DME. Long-term effects of these agents on the macular perfusion (MP) are a current concern.
View Article and Find Full Text PDFObjective: To evaluate macular perfusion changes following intravitreal bevacizumab injections for diabetic macular edema (DME) using spectral domain optical coherence tomography angiography (SD-OCTA).
Methods: This study was a prospective noncomparative interventional case series. Treatment naïve patients with DME underwent full ophthalmological examination and SD-OCTA scanning at baseline and after 3 intravitreal bevacizumab injections.
Rhinosinusitis is a frequent disease in children but may be underdiagnosed, that is to say, several causes of the disease are missed in children. Therefore, it seems essential to provide other modalities to treat chronic health conditions like such cases. This controlled clinical study was conducted to compare the effect of two non-pharmacological, painless, safe modalities; low-level laser therapy (LLLT), with pulsed electromagnetic field (PEMF) on mucosal membrane thickening in children with chronic rhinosinusitis.
View Article and Find Full Text PDFPurpose: To report a case of adult-onset Coats' disease that had worsening of macular edema and progressive macular traction following cryotherapy and repeated intravitreal bevacizumab injections due to formation of a secondary epiretinal membrane which only improved following pars plana vitrectomy and membrane peeling.
Observations: A 35-year-old male presented with diminution of vision in his left eye and was found to have localized telangiectatic retinal vessels and aneurysmal dilatations with massive exudation and cystoid macular edema. He was diagnosed as adult-onset Coats' disease and treated with cryotherapy and a concomitant intravitreal injection of 2.
A 53-year-old female patient with center-involving diabetic macular edema affecting the left eye was imaged using optical coherence tomography angiography (OCTA) in both eyes. She underwent three monthly intravitreal bevacizumab injections in the left eye only and OCTA was repeated in both eyes one month following the last injection and showed decreased vascular density (VD) in the treated left eye but not in the untreated right eye compared to baseline. No further injections were required in either eye, and OCTA was done in both eyes 4 months following the last injection which showed improved VD of the left eye with stable VD in the right.
View Article and Find Full Text PDFPurpose: To determine the factors that influence the adherence to follow-up and injections in patients with diabetic macular edema (DME) utilizing a health belief model (HBM) as a theoretical framework, and using demographic variables and knowledge about DME as factors that influence individual perceptions.
Material And Methods: A structured questionnaire was developed utilizing the six domains of HBM and using knowledge and other demographics as modifying variables. The questionnaire was checked for validity and reliability, and then used to collect data from patients with DME who were candidates for intravitreal injections according to pro-re-nata regimen, and completed one year after the first injection.
Background: Gyrate atrophy of the choroid and retina is a rare autosomal recessive condition characterized by chorioretinal atrophy due to deficiency of the enzyme ornithine aminotransferase that can be complicated by intraretinal cystic spaces.
Case Report: A 15-year-old female complaining of gradually progressive diminution of vision in both eyes preceded by night blindness was found to have gyrate atrophy of the choroid and retina with intraretinal cystic spaces that was evaluated using multimodal imaging including fluorescein angiography, optical coherence tomography, and optical coherence tomography angiography. Functional and anatomical improvement of the intraretinal cystic spaces was achieved with monthly intravitreal bevacizumab injections.
Purpose: To evaluate anatomic and functional outcomes of patients treated with pars plana vitrectomy (PPV) with scleral buckling versus PPV with inferior retinectomy for treatment of cases of primary rhegmatogenous retinal detachment (RRD) associated with proliferative vitreoretinopathy (PVR) and inferior retinal breaks.
Methods: Retrospective, comparative, interventional, single-center study. Fifty-one eyes of fifty-one patients with primary RRD associated with inferior breaks and PVR grade C1 or more were reviewed over 3 years.
Purpose: To highlight the prevalence of selected ophthalmic diseases accidentally discovered at first-time screening of a large sample of patients from the Middle East and North Africa visiting a large referral university hospital checkup unit based in Cairo.
Material And Methods: A cross-sectional study of two thousand and thirteen subjects coming for routine ophthalmic medical checkups from different Middle East countries (mainly Egypt, Sudan, and Yemen). Patients were evaluated for prevalence of diabetic retinopathy, glaucoma, ocular hypertension, cataract, and amblyopia.
Purpose. To study factors affecting patients' compliance to antiglaucoma medications in Egypt where there are unique factors as a developing country. Patients and Methods.
View Article and Find Full Text PDFObjective: Detecting the current prevalence of hepatitis C virus (HCV) among Egyptian multitransfused thalassemic patients and evaluating the risk of its transmission within their family members.
Methods: Multitransfused Egyptian thalassemia patients (n = 137) were tested for HCV infection. Household contacts of positive members were compared with household contacts of HCV-negative patients.
The relationship between epidemiology of S. mansoni infection and snail distribution at a village, related to Guiza Governorate and lies south to Cairo, was investigated. A systematic random sample of houses was selected.
View Article and Find Full Text PDFThe effect of low concentrations of different synthetic and natural mollusciciding agents may introduce to fresh water environment on reproduction and biochemical aspects of Biomphalaria alexandrina was studied. Different mollusciciding agents (copper sulphate, Bayluscide, Uccmaluscide, Agave filifera & A. attenuate) inhibited egg production, induced marked increased the percent of abnormal laid eggs and induced marked reduction in their hatchability.
View Article and Find Full Text PDFTwo species of Biomphalaria are reported from Egypt, the indigenous Biomphalaria alexandrina and Biomphalaria glabrata, the latter believed to be introduced during the past few decades. Both are known to be excellent hosts of Schistosoma mansoni, the human-infecting blood fluke common in Egypt. Given the concerns regarding the spread of the exotic B.
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