Ayman Elnahry

Ayman Elnahry
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Ayman verified their affiliation via an institutional email.
Verified
Ayman verified their affiliation via an institutional email.
  • MD/PhD in Ophthalmology
  • Clinical Assistant Adjunct Professor at University of Wisconsin–Madison

Vitreoretinal Specialist and Ocular Oncologist

About

105
Publications
30,559
Reads
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503
Citations
Introduction
Current institution
University of Wisconsin–Madison
Current position
  • Clinical Assistant Adjunct Professor
Additional affiliations
July 2024 - present
BayCare Clinic Eye Specialists
Position
  • Retina Specialist and Ocular Oncologist
August 2020 - present
Cairo University
Position
  • Lecturer
Education
January 2017 - November 2019
Cairo University
Field of study
  • Ophthalmology and Vision Sciences
November 2012 - November 2015
Cairo University
Field of study
  • Ophthalmology and Vision Sciences
September 2004 - December 2010
Cairo University
Field of study
  • Medicine and Surgery

Publications

Publications (105)
Article
Purpose To compare the utility of peripapillary microperimetry and optical coherence tomography angiography (OCTA) in the differential diagnosis of patients with optic disc edema, including papilledema, optic neuritis, and anterior ischemic optic neuropathy (AION), all in the acute phase, and to correlate the structural and functional findings in t...
Article
Purpose To evaluate the efficacy and safety of prostaglandin E1 (PGE1) for the management of central/branch retinal artery occlusion (CRAO/BRAO). Methods Our protocol was registered prospectively on PROSPERO (CRD42024522961). We searched 4 electronic databases [PubMed, Scopus, Web of Science, and Google Scholar] to retrieve all studies reported us...
Article
Purpose The aim of this study was to compare the peripapillary and macular vascular density changes in neuromyelitis optica spectrum disorders (NMOSD) patients to multiple sclerosis (MS) patients with previous history of optic neuritis and to correlate the loss in the retinal nerve fiber layer (RNFL) and the ganglion cell complex (GCC) with the vas...
Article
Non-arteritic ischemic optic neuropathy (NAION) is a common cause of sudden, painless vision loss, often triggered by inadequate blood supply. Dialysis, essential for end-stage renal disease (ESRD), can precipitate intradialytic hypotension, potentially leading to dialysis-associated NAION (DA-NAION). Our protocol was prospectively registered on PR...
Poster
Full-text available
This systematic review and meta-analysis investigates the efficacy of macular buckling surgery in treating myopic traction maculopathy. We analyzed 13 studies with 482 myopic eyes to assess changes in visual acuity, axial length, retinal reattachment, and macular hole closure rates. Results suggest that macular buckling provides significant improve...
Poster
Full-text available
Facial and Botox injections are linked to significant ocular complications, with ptosis, vision impairment, and blindness being the most common. These issues are more prevalent in females and older patients. Further research is needed to assess long-term effects.
Article
Full-text available
Purpose: Myopic traction maculopathy is a major cause of visual impairment and blindness, particularly in Asian populations. With the global burden of myopia on the rise, understanding effective treatment options is crucial. This systematic review and meta-analysis evaluate the efficacy of macular buckling in the management of myopic traction macul...
Article
Suprachoroidal hemorrhage (SCH) is a potentially visually devastating complication of intraocular surgery, but estimates of perioperative SCH incidence vary. We performed a systematic review and meta-analysis of perioperative SCH incidence among population-based studies published between 1990 and 2023. Thirty-five studies collectively reported 1,65...
Article
Purpose To identify risk factors and effect modifiers associated with intraocular inflammation (IOI) following brolucizumab injection. Methods Our protocol was registered on PROSPERO (CRD42022382645). We searched six electronic databases (PubMed, Scopus, Web of Science, CENTRAL, EMBASE, and Google Scholar) to retrieve all studies that reported the...
Preprint
Full-text available
Timely disease diagnosis is challenging due to increasing disease burdens and limited clinician availability. AI shows promise in diagnosis accuracy but faces real-world application issues due to insufficient validation in clinical workflows and diverse populations. This study addresses gaps in medical AI downstream accountability through a case st...
Article
Full-text available
Background To describe Purtscher’s and Purtscher-like retinopathy clinical features, etiologies, management options, and visual outcomes. Methods Our protocol was registered on PROSPERO [registration number: CRD42023406843]. Seven online databases were searched: PubMed, Scopus, Medline, ScienceDirect, CENTRAL, clinicaltrials.gov, and Google Schola...
Article
Purpose The aim of this study was to compare phacovitrectomy (phacoPPV) to lens-sparing pars plana vitrectomy (PPV) with respect to macular perfusion, thickness, and sensitivity in phakic patients with rhegmatogenous retinal detachment. Patients and methods This is a prospective, comparative, nonrandomized, interventional study that included 31 ph...
Poster
Full-text available
Purtshcer’s and Purtscher-like retinopathy are rare retinal microangiopathies that have been recognized since 1910, in association with head trauma, chest compression or other trauma in the case of Purtscher’s retinopathy, and in association with systemic disease as SLE and acute pancreatitis in the case of Purtscher-like retinopathy. It is a sight...
Article
Full-text available
Purpose To evaluate the quality, reliability, and readability of online patient educational materials on leukocoria. Methods In this cross-sectional study, the Google search engine was searched for the terms “leukocoria” and “white pupil.” The first 50 search outcomes were evaluated for each search term based on predefined inclusion criteria, excl...
Article
Purpose To review all studies reporting the occurrence of white dot syndromes (WDSs) following SARS-COV-2 infection. Methods On May 12, 2023, we registered our protocol on PROSPERO [registration number: CRD42023426012]. Five different databases including PubMed, Scopus, Web of Science, Google Scholar, and Science Direct were searched up to May 2023...
Article
Purpose The optimal management of pediatric traumatic macular holes (TMH) is unclear from lack of prospective randomized trials. The literature is divided into early (≤1month post-trauma), delayed (>1month) pars plana vitrectomy (PPV), and observation. Our aim is to find which group can achieve superior spectacle corrected visual acuity (VA), visua...
Article
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...
Article
Full-text available
Purpose To review all studies reporting the onset of white dot syndromes following COVID-19 vaccines. Methods Our protocol was registered prospectively on PROSPERO [registration number: CRD42023426012]. We searched five different databases including PubMed, Scopus, Web of Science, Google Scholar, and Science Direct up to May 2023. All the studies...
Article
Purpose: To determine factors associated with visual and anatomic outcomes of suprachoroidal hemorrhage (SCH) in studies published between 1990 and 2022. Methods: Individual participant data (IPD) systematic review. The protocol was prospectively registered on Open Science Framework (https://osf.io/69v3q/). PubMed, EMBASE, Web of Science, and Go...
Conference Paper
Purpose: We have previously performed a systematic review and meta-analysis of suprachoroidal hemorrhage (SCH) for which each study was the unit of analysis. Compared to a study-level meta-analysis, an individual participant data (IPD) meta-analysis can provide advantages as each patient is a unit of analysis. The purpose of this study was to chara...
Article
Introduction: To explore the safety and efficacy of episcleral brachytherapy as a primary management option for eyes with retinal pigment epithelial (RPE) adenoma. Methods: Retrospective chart review of the demographic, clinical, ancillary, and post-operative outcome data of patients with RPE adenoma in 2 tertiary referral centers. Tumor regression...
Article
Full-text available
Purpose To investigate best corrected visual acuity (BCVA), subretinal fluid (SRF) absorption time or ellipsoid zone (EZ) restoration time and various variables in patients with persistent SRF after successful primary repair of rhegmatogenous retinal detachment (RRD). Methods This retrospective multicenter study allowed independent analysis of the...
Article
Full-text available
Purpose: To investigate the efficacy and safety of brolucizumab in diabetic macular edema (DME) and diabetic retinopathy (DR). Methods: In this systematic review and meta-analysis, an electronic search was done to acquire all articles describing brolucizumab use in patients with DME and DR. The review was prospectively registered on PROSPERO (CR...
Article
Purpose: To report the use of combination intravitreal pharmacotherapy using anti-vascular endothelial growth factor (VEGF) and short and long-term corticosteroid implants for the treatment of retinal vasoproliferative tumors (VPT) associated with intermediate uveitis. Methods: Retrospective chart review of patients with VPT secondary to idiopat...
Article
Aims: To compare the vascular density (VD) of the macular superficial capillary plexus (SCP), deep capillary plexus (DCP), and choriocapillaris (CC), and the foveal avascular zone (FAZ) among high hyperopic, high myopic, and emmetropic children using optical coherence tomography angiography (OCTA). Methods: This was a cross sectional comparative...
Article
Full-text available
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 crop...
Conference Paper
Purpose: There are currently no medications approved for treating PVR associated with RRD (PVR-RRD). A recent animal study showed that IVI can inhibit PVR development and reduce cytokines levels in an experimental dispase-induced PVR model. The purpose of this phase II trial was to evaluate the safety and efficacy of IVI in treating PVR-RRD. Method...
Poster
Purpose: Recent cross-sectional studies have suggested a positive association between reticular pseudodrusen (RPD) presence and cardiovascular disease (CVD) in individuals with age-related macular degeneration (AMD). We longitudinally evaluated the risk of CVD events, stroke, and related death, according to RPD status, in the Age-Related Eye Diseas...
Poster
Purpose: To characterize cases of suprachoroidal hemorrhage (SCH) published since 1990, and to determine associations of presenting and management factors with visual and anatomic outcomes. Methods: We reviewed peer-reviewed studies of SCH published in PubMed, EMBASE, Web of Science, or Google Scholar from 1/1/1990 to 9/1/2022. The protocol was pr...
Poster
Purpose: Von-Hippel Lindau disease (VHL) is a rare genetic disease resulting in multi-system tumors including retinal hemangioblastomas (RH). Belzutifan is an oral FDA approved hypoxia-inducible factor-2α inhibitor for VHL lesions involving the kidneys and central nervous system. Studies have shown that RH can regress with belzutifan. This study an...
Poster
Purpose: To investigate the correlation between outcome measures (final best corrected visual acuity (BCVA), time for subretinal fluid (SRF) absorption, time for ellipsoid zone (EZ) restoration) and various systemic and ocular variables in patients with persistent SRF after successful primary repair of rhegmatogenous retinal detachment (RRD). Meth...
Article
Full-text available
Background To compare the microvascular features of different subtypes of diabetic macular edema (DME) by optical coherence tomography angiography (OCTA). Methods A cross-sectional study including treatment-naive patients with DME. Eyes were divided according to optical coherence tomography determined morphology into two groups: cystoid macular ed...
Article
Topic: To characterize the presentation, management, and outcomes of suprachoroidal hemorrhage (SCH) in published studies. Clinical relevance: SCH is a potentially devastating condition, but there is no high-quality evidence for the prognosis or management of SCH. Methods: We performed a systematic review and meta-analysis of peer-reviewed studies...
Article
Full-text available
Purpose Foldable capsular vitreous body (FCVB) is an emerging vitreous substitute that has been recently introduced to treat various advanced vitreoretinal conditions including severe ocular trauma, complicated retinal detachment (RD), and proliferative vitreoretinopathy. Methods Review protocol was prospectively registered at PROSPERO (CRD4202234...
Conference Paper
Purpose: To report optical coherence tomography angiography (OCTA) findings in pediatric patients with Juvenile Idiopathic Arthritis (JIA) and to correlate these findings with ocular and systemic disease activity. Methods: This was a cross-sectional study of pediatric patients diagnosed with JIA at Cairo University Children’s Hospital. All pa...
Article
Full-text available
The main aim of this study is to investigate the current evidence regarding the association between COVID-19 vaccination and ocular vascular events. The protocol is registered on PROSPERO (CRD42022358133). On 18 August 2022, an electronic search was conducted through five databases. All original articles reporting individuals who were vaccinated wi...
Article
Full-text available
Aim of the work To report optical coherence tomography angiography (OCTA) findings in juvenile idiopathic arthritis (JIA) patients and to study the relation to disease activity. Patients and methods The study included 20 JIA patients (38 eyes) who underwent ophthalmologic and rheumatologic examination plus OCT/OCTA. Juvenile arthritis disease acti...
Article
Intravitreal anti-vascular endothelial growth factor (anti-VEGF) treatment has drastically improved the visual and anatomical outcomes in patients with diabetic macular edema (DME); however, success is not always guaranteed, and a proportion of these eyes demonstrate persistent DME (pDME) despite intensive treatment. While standardized criteria to...
Article
Full-text available
We provide a systematic review of published cases of optic neuropathy following COVID-19 vaccination. We used Ovid MEDLINE, PubMed, and Google Scholar. Search terms included: “COVID-19 vaccination”, “optic neuropathy”, “optic neuritis”, and “ischemic optic neuropathy”. The titles and abstracts were screened, then the full texts were reviewed. Sixty...
Article
Full-text available
Purpose: To report a case of anterior ischemic optic neuropathy (AION) following COVID-19 vaccination and provide a systematic review of all published cases of optic neuropathy following COVID-19 vaccination. Methods: A systematic literature search was performed using PubMed and Ovid MEDLINE for cases of optic neuropathy following COVID-19 vaccina...
Article
Full-text available
Purpose: To report the use of short-term perfluorocarbon liquid (ST-PFCL) tamponade following choroidal melanoma endoresection. Methods: Patients with medium to large choroidal melanomas not amenable to primary Ruthenium-106 brachytherapy underwent choroidal melanoma endoresection following gamma knife radiosurgery. During surgery, a complete vitr...
Poster
Purpose : To review published peer-reviewed reports of massive suprachoroidal hemorrhage (MSCH) between 1990 and 2021. Methods : We performed a systematic review and meta-analysis of published reports of MSCH, defined as ≥ 2 quadrant involvement, macular involvement, kissing, expulsive, or otherwise defined as “massive” by authors, published betwe...
Article
Full-text available
Purpose Gyrate atrophy of the choroid and retina (GA) is a rare genetic ophthalmologic condition which primarily manifests in childhood. It is characterized by hyperornithinemia and progressive chorioretinal atrophy. Patients may develop macular intraretinal cystic spaces (ICS) for which various treatment modalities have been reported. We report a...
Article
Purpose: To assess the diagnostic utility of (1→3)-β-D-glucan (BDG) in ocular fluid of patients with fungal endophthalmitis. Methods: This prospective pilot single-center study evaluated aqueous and vitreous humor BDG levels of suspected fungal endophthalmitis, bacterial endophthalmitis, and noninfectious controls with the standard Fungitell ass...
Article
Full-text available
Purpose: 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 th...
Preprint
Full-text available
Purpose: To report a case of anterior ischemic optic neuropathy (AION) following COVID-19 vaccination and provide a systematic review of all published cases of optic neuropathy following COVID-19 vaccination. Methods: A systematic literature search was performed using PubMed and Ovid MEDLINE for cases of optic neuropathy following COVID-19 vaccinat...
Article
Full-text available
Botulinum toxin (BT) is a neurotoxin produced by Clostridium botulinum, a gram-positive anaerobic bacterium. Systemic human intoxication from BT following oral ingestion results in acute and life-threatening muscle paralysis called botulism. BT has a wide scope of therapeutic uses, including conditions associated with increased muscle tone, smooth...
Article
PURPOSE: We report two cases of optic nerve pathology after the administration of the Pfizer-BioNTech and AstraZeneca-Oxford COVID-19 vaccines, respectively, and describe the implications for management of post-vaccination central nervous system (CNS) inflammation. CASE REPORTS: A 69-year-old woman presented with bilateral optic nerve head oedema,...
Article
Full-text available
Gyrate atrophy (GA) of the choroid and retina is a rare autosomal recessive genetic condition characterized by elevation of the plasma level of the amino acid ornithine due to deficiency of the enzyme ornithine ketoacid aminotransferase. Accumulation of ornithine occurs in various body tissues but leads primarily to characteristic ophthalmic manife...
Article
Full-text available
A type 1 diabetic patient with unilateral active thyroid-related eye disease was intolerant to systemic steroid therapy due to uncontrollable blood sugar levels. She was treated with low-dose methotrexate monotherapy, which resulted in a marked improvement of her condition with no adverse events.
Article
Background To evaluate the changes in the mean macular intercapillary area (ICA) from sequential enface optical coherence tomography angiography (OCTA) images following intravitreal anti-vascular endothelial growth factor (VEGF) therapy in initially treatment-naïve eyes with diabetic macular oedema (DME). Methods In this multicentre retrospective...
Chapter
Full-text available
The middle layer of the eye, also known as the uvea (uva or "grape" in Greek), is made up of the iris, the ciliary body, and the choroid. Uveitis is an inflammation of the middle layer of the eye which can involve one, two, or all three parts of the uveal tract. It can be classified in several ways; anatomically into anterior, intermediate, posteri...
Article
Full-text available
Background: Diabetic macular edema (DME) is a major cause of vision loss in diabetics that is currently mainly treated by antivascular endothelial growth factor (VEGF) agents. The effect of these agents on macular perfusion (MP) is a current concern. Optical coherence tomography angiography (OCTA) is an imaging modality that allows noninvasive hig...
Poster
Purpose: To identify biomarkers that may predict an early anatomical response to the treatment of diabetic macular edema (DME) with off-label intravitreal bevacizumab (IVB) by means of optical coherence tomography angiography (OCTA). Methods: Patients with diabetic retinopathy (DR) who were beginning treatment for DME were recruited from Cairo Uni...
Article
Full-text available
BACKGROUND: Cerebral venous sinus thrombosis (CVST) is a serious life- and vision-threatening condition that can have a variable presentation according to the site of venous occlusion, including mimicking idiopathic intracranial hypertension. We report on a patient with primary antiphospholipid antibody syndrome (APS) who presented with papilledema...
Article
PURPOSE: To quantitatively compare microvascular features in the macula of patients with diabetic retinopathy (DR) using fluorescein angiography (FA) and optical coherence tomography angiography (OCTA). METHODS: Patients with DR were recruited from the Cairo University Hospital. FA was performed using a Topcon TRC-50DX or Heidelberg Spectralis HRA+...
Article
Full-text available
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 fix...
Chapter
Full-text available
Gyrate atrophy (GA) of the choroid and retina is a rare genetic disease of autosomal recessive inheritance. It primarily affects the ocular tissues and occurs due to deficiency of the enzyme ornithine aminotransferase (OAT) that leads to a 10 to 20 times increase in the plasma level of the amino acid ornithine, compared to the normal plasma levels,...
Article
A 47-year-old woman with a history of hypertension and type 2 diabetes for more than 15 years was referred for proliferative diabetic retinopathy management. Her chief complaint was acute onset of blurry vision in the right eye. She described intermittent foggy vision and the appearance of “a hair moving across the vision of her right eye” for the...
Article
This case is submitted by Drs. Ayman G. Elnahry, Aliaa A. Farag, and Ahmed A. Abdel-Kader, Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt; commented by Drs. Randy C. Bowen, and Sumit Sharma, Cleveland, OH.
Article
Purpose: To evaluate the use of intravitreal bevacizumab injections for the treatment of intraretinal cystic spaces associated with gyrate atrophy of the choroid and retina. Methods: Retrospective chart review of 5 eyes of 3 patients with intraretinal cystic spaces associated with gyrate atrophy and treated with intravitreal bevacizumab injectio...
Article
Full-text available
Acute idiopathic maculopathy (AIM) is a condition reported to occur in young adults, which is classically characterized by the development of a unilateral serous macular detachment that commonly follows a flu-like illness. A 27-year-old female patient complained of diminution of vision in her left eye, of acute onset and progressive course for 2 we...
Article
Background: In the current coronavirus disease 2019 (COVID-19) pandemic, health systems are struggling to prioritize care for affected patients, however, physicians globally are also attempting to maintain care for other less-threatening medical conditions that may lead to permanent disabilities if untreated. Idiopathic intracranial hypertension (I...
Article
Objectives: To evaluate the use of peripapillary microperimetry in the diagnosis and follow-up of medically and surgically treated cases of papilledema due to idiopathic intracranial hypertension (IIH). Methods: This study was a prospective non-comparative observational case series of patients with IIH. All patients underwent full ophthalmologic...
Article
To evaluate the relationship between superficial, deep foveal avascular zone (FAZ) and foveal cyst areas in eyes with cystoid macular oedema (CMO) associated with gyrate atrophy of the choroid and retina (GA). This is a retrospective collaborative multicenter study of optical coherence tomography-angiography (OCTA) images in GA. Superficial and dee...
Chapter
Full-text available
Adie syndrome, also called the Holmes-Adie Syndrome, is named after William John Adie, the British neurologist of Australian descent, and Sir Gordon Morgan Holmes, an Irish neurologist. They both reported the condition in 1931, where Adie named it Pseudo-Argyll Robertson pupil. Earlier in 1881, Hughlings Jackson had described mydriasis with pupilla...
Chapter
Full-text available
Bacteria, viruses, fungi, and protozoa are all causes of microbial keratitis. Fungal keratitis (FK) was first documented in 1879, and its incidence has been increasing for the past 30 years. It accounts for about 40% to 50% of all microbial keratitis cases. FK is a serious condition that if not properly treated can lead to corneal destruction and e...
Article
Full-text available
Background: 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. Objective: To review recently published s...
Article
Full-text available
Objective: 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 ophthalmologica...
Article
Harlequin syndrome is a condition characterized by autonomic dysfunction leading to hemifacial flushing on one side with pallor and impaired sweating on the other side. It is a rare condition that can be both congenital and acquired, with congenital cases being rarer, comprising ∼6% of all Harlequin syndrome cases. Harlequin syndrome is usually ass...
Preprint
Full-text available
Background: This study was done 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 were recruit...
Article
Full-text available
Background: Rosuvastatin is a 3-hydroxy-3-methyl-glutaryl-CoA reductase enzyme inhibitor that is in wide use with few reported ocular adverse events. Objectives: To report a case of bilateral neurotrophic keratopathy associated with rosuvastatin therapy that dramatically improved following drug discontinuation. Case presentation: A 65-year-old fema...
Article
Full-text available
A 53-year-old male developed acute diminution of vision in his right eye while on FOLFOX chemotherapy for stage C colon cancer. Examination revealed bilateral optic nerve head swelling with flame shaped hemorrhages over the right optic disc and anomalous left retinal vasculature. Computed tomography scan of the brain and orbit revealed no cerebral...
Article
Full-text available
Purpose: 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...
Conference Paper
Purpose : To compare retinal vascular changes in the macula of diabetic patients using fundus fluorescein angiography (FFA) and optical coherence tomography angiography (OCTA) images aligned using a commercially available alignment software. Methods : Patients with diabetic retinopathy were recruited from Cairo University retina clinic. FFA was pe...
Article
A 10-year-old girl presented with a complaint of diplopia and mild superomedial orbital pain in the left eye of 2 weeks’ duration. She had limited elevation of the left eye, especially in adduction, moderate limitation of elevation in the primary position, mild limitation of elevation in abduction, downshoot in adduction, mild hypotropia in the pri...
Poster
Full-text available
Purpose: To characterize the relation between microaneurysms (MAs) identified by fundus fluorescein angiography (FFA) and areas of diabetic macular ischemia (DMI) delineated by optical coherence tomography angiography (OCTA) using a commercially available alignment software. Methods: Patients with diabetic retinopathy were recruited from Cairo Univ...
Article
Full-text available
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 decr...
Article
Purpose: To determine the prevalence of posterior segment manifestations among consecutive patients with pathological myopia attending our University Hospital general ophthalmology clinic and their association with age, refractive error, axial length and each other. Methods: Patients diagnosed with pathological myopia underwent full ophthalmologica...
Article
Full-text available
A 53-year-old male developed acute diminution of vision in his right eye while on FOLFOX chemotherapy for stage C colon cancer. Examination revealed bilateral optic nerve head swelling with flame shaped hemorrhages over the right optic disc and anomalous left retinal vasculature. Computed tomography scan of the brain and orbit revealed no cerebral...
Article
Link to full text: https://www.tandfonline.com/eprint/SZIGvdNshxjgXZw8yNwb/full?target=10.1080/01676830.2019.1582073
Article
Full-text available
Pathological myopia is a major growing public health concern in many countries worldwide including Egypt. Its exact cause is unknown, but multiple genetic and environmental factors are thought to play a role in its pathogenesis. The main concern with pathological myopia from a vitreoretinal perspective is the development of various posterior segmen...
Article
Full-text available
Letter to the editor regarding: “cystoid macular edema secondary to gyrate atrophy in a child treated with sub-tenon injection of triamcinolone acetonide”
Article
Full-text available
Purpose: To determine the prevalence of Pathological Myopia at the general ophthalmology clinic of our University Hospital over a period of 3 months. Methods: This is a cross sectional study to determine the prevalence of Pathological Myopia at the ophthalmology clinic of our University Hospital. Patients had full ophthalmological examination. Eye...
Article
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...
Article
Full-text available
Traumatic chiasm transection is a rare condition characterized by bitemporal hemianopsia following head trauma. In a study of visual complications following head trauma, only 4.4% of patients suffered from chiasmal injuries. Complete transection of the chiasm is even more rare and best visualized using magnetic resonance imaging (MRI). We report th...

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Although the human lens contains continuously dividing and differentiating lens epithelial cells, there are no reports on tumors arising from or within the human lens. This mystery if unraveled could provide insights into methods of prevention of tumor formation in other organs.

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