Publications by authors named "Umar Mian"

(1) Background: Healthcare is a major contributor to global greenhouse gas (GHG) emissions, especially within the surgical suite. Ophthalmologists play a role, since they frequently perform high-volume procedures, such as cataract surgery. This review aims to summarize the current literature on surgical waste and GHG emissions in ophthalmology and proposes a framework to standardize future studies.

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Background/aim: A few shave identified systemic and hematologic risk factors for Proliferative Sickle Cell Retinopathy (PSR) development. The relevance of healthcare utilization as a risk factor for PSR has not been defined. This study evaluates patterns of healthcare utilization among patients with sickle cell disease (SCD) and retinopathy.

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The early treatment of diabetic retinopathy (DR) prevents vision-threatening proliferative retinopathy (PDR) and macular edema (DME). Our study evaluates telemedicine (teleretinal) screening for DR in an inner-city healthcare network with a high ethnic diversity and disease burden. Fundus photographs were obtained and graded in a centralized reading center between 2014 and 2016.

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The American Academy of Ophthalmology and the National Heart, Lung and Blood Institute recommend patients with sickle cell disease (SCD) undergo dilated funduscopic exams (DFE) every 1-2 years to screen for sickle retinopathy. There is a paucity of data on the adherence rate to these guidelines; a retrospective study was performed to evaluate our institution's adherence. A chart review of 842 adults with SCD, seen 3/2017-3/2021 in the Montefiore healthcare system (), was done.

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Background: It is unclear how increasing survival of low gestational age (GA) infants affects ophthalmologic screening and treatment rates for retinopathy of prematurity (ROP). This study compared the examination and treatment rates of infants born at GA of <25 weeks and those born at GA of at least 25 weeks.

Methods: This was a retrospective study of patients who met institutional ROP screening criteria and were admitted to two neonatal intensive care units (NICUs) from January 2017 to June 2020.

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Background: A telemedicine screening initiative was implemented by the Montefiore Health System to improve access to eyecare for a multi-ethnic, at-risk population of diabetic patients in a largely underserved urban community in the Bronx, New York. This retrospective, cross-sectional analysis evaluates the societal benefit and financial sustainability of this program by analyzing both cost and revenue generation based on current standard Medicare reimbursement rates.

Methods: Non-mydriatic fundus cameras were placed in collaboration with a vendor in eight outpatient primary care sites throughout the Montefiore Health Care System, and data was collected between June 2014 and July 2016.

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Background: Retinopathy of prematurity (ROP) is a sight-threatening disease that requires strict, scheduled screening and timely treatment. Examining infants in the neonatal intensive care unit (NICU) confers an added burden for ophthalmologists whose practices are predominantly outpatient. We sought to evaluate the time required for ROP services and to approximate compensation to better understand the implications of providing this crucial service.

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Article Synopsis
  • Retinopathy is the most common vascular complication of sickle cell disease (SCD) and can lead to blindness; hydroxycarbamide therapy helps improve SCD symptoms.
  • This study evaluated the impact of hydroxycarbamide treatment and fetal hemoglobin (HbF) levels on the development of retinopathy in adults with SCD, utilizing data from 300 patients.
  • Results indicated that lower HbF levels are associated with retinopathy in patients treated with hydroxycarbamide, identifying a HbF threshold of 15% where the risk of developing retinopathy is reduced by 50%.
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Purpose: Retinal vascular occlusions can lead to sudden and permanent visual impairment or blindness. Few epidemiological studies on retinal vascular occlusions have been conducted, especially on diverse populations.

Methods: This is a retrospective case-control study of all incident retinal vascular occlusions occurring during a three and one-half year study period at Montefiore Medical Center, capturing all potential cases by diagnosis codes.

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Background And Objective: Retinopathy of prematurity presents differently in developing versus developed countries, which may be due to environmental as well as racial differences.

Patients And Methods: Retrospective chart review of infants screened for ROP at a single neonatal intensive care unit. Risk factors were reviewed.

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Background: Toxoplasma retinochoroiditis can have an atypical presentation and be difficult to diagnose in immunocompromised patients. Accurate diagnosis and appropriate treatment is important since the disease can be aggressive in these patients. This paper is a case report with literature review, emphasizing on the diagnosis and treatment of Toxoplasma retinochoroiditis.

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Purpose: To examine whether clinically significant patent ductus arteriosus (PDA) or indomethacin treatment are associated with plus disease or retinopathy of prematurity (ROP) requiring treatment.

Methods: Retrospective, cross-sectional study. Charts were reviewed for gestational age, birth weight, birth head circumference, birth length, maternal characteristics, gender, bronchopulmonary dysplasia, neurologic comorbidities, PDA and its treatments, gastrointestinal comorbidities, blood transfusions, and sepsis.

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Purpose. To describe the characteristics of idiopathic macular holes (MH) on optical coherence tomography (OCT) and correlate OCT with clinical assessment. Design.

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Objective: To evaluate the effect of partially attached posterior vitreous detachments (pPVDs) at the optic disc on retinal nerve fiber layer (RNFL) thickness as measured by optical coherence tomography.

Methods: A retrospective study was conducted using stored Stratus optical coherence tomography III scans of patients with suspected glaucoma from January 2003 to September 2006 at the Montefiore Medical Center, Bronx, New York. All scans were evaluated for vitreous attachments at the disc and were divided into control (without pPVD) and pPVD groups.

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