School of Medicine

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The Faculty of Medicine is one of the premier medical research and educational institutions in Iran for over 50 years.As a fist type institution in Iran, the faculty provides best educational and research programs in the areas of health and life sciences through an expert staff and province-wide model. Our faculty members, students, staff and alumni are actively engaged in leading edge research, education and community service on university and hospital campuses across the province....

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Author: search.filters.author.Bahremani, Erfan

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    Prevalence and years lived with disability (YLDs) due to vision loss in the Middle East and North Africa region, 1990-2019
    (Tabriz University of Medical Sciences, Faculty of Medicine, 2024) Bahremani, Erfan; asghar Kolahi, Ali; Alizadeh, Mahasti; Safiri, Saeid
    Vision loss is a substantial public health issue that has important implications for an individual’s quality of life. The present study aimed to report the burden of vision loss from 1990 to 2019 in the Middle East and North Africa (MENA) region by age, sex, underlying cause and sociodemographic index (SDI). Methods: Publicly available data on the prevalence and years lived with disability (YLDs) due to vision loss were obtained from the Global Burden of Disease study 2019. The data were obtained for the 21 countries located in the MENA region from 1990 to 2019. All estimates were reported as counts and age-standardised rates per 100000, together with their 95% uncertainty intervals (UIs). Results: In 2019, MENA had an age-standardised point prevalence of 7040.0 (95% UI: 6195.0, 8002.7) and an YLD rate of 314.5 (222.1, 427.6) per 100000, which are 11.1% (-12.5, -9.7) and 24.3% (-27.6, -20.8) lower, respectively, than in 1990. In 2019, Afghanistan [469.6 (333.0, 632.8)] had the highest age-standardised YLD rate and Turkey [210.7 (145.3, 290.9)] had the lowest. All countries showed a decrease in the age-standardised point prevalence and YLD rate between 1990 and 2019, except for Oman, Afghanistan, and Yemen. Furthermore, in 2019 the highest number of prevalent cases and YLDs were in the 65-69 age group. Also in 2019, the age-standardised YLD rates in MENA were higher than the global estimates in most age groups, for both males and females. In 2019, refractive disorders were the most common types of vision loss among children, adolescents, and middle-age adults in MENA, while near vision loss and cataracts were the most common among older adults. Finally, the burden of vision loss had a slightly negatively association with SDI over the period 1990-2019.
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    correlation of Senile Cataract grading using the Lens Opacities Classification System 3 with Densitometry findings by Oculus Pentacam
    (Tabriz University of Medical Sciences, Faculty of Medicine, 2019) Bahremani, Erfan; Khamnian, Zhila; Mirzaie, Mohammad
    The aim of present study was to assess the diagnostic acuity of PCGS comparing to LOCS III.Methods & Materials:In a cross-sectional study from April 2016 to May 2017, patients with senile cataract were evaluated for grading of lens opacity using LOCS III as a subjective and PCGS as an objective methods. Patients with pure age-related cataract with no previous history of eye surgery, eye trauma or chronic systemic disease between 50 and 95 years of age were included. An experienced trained ophthalmologist examined the participants using a Topcon SL-3c Slit lamp and LOCS III grading chart. A week later, Patients were examined using Oculus Pentacam Typ 70700 and graded using PNS grading score. Spearman’s ranked correlation and Bland-Altman Plot were implemented for analysis using MedCalc 14.8.1. P<0.05 was regarded as statistically significant.Results:Three-hundred eyes from 281 patients were examined. Nineteen patients were evaluated for their both eyes. Ninety-two patients were female and patients in their 7th decade of their life were the most common group. The correlation between grades of two methods was 0.47(p<0.001). Results of Bland-Altman plot demonstrated a moderate alignment between two methods.