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Ophthalmic Epidemiology

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https://www.readbyqxmd.com/read/29035128/prospective-study-of-plasma-homocysteine-its-dietary-determinants-and-risk-of-age-related-macular-degeneration-in-men
#1
William G Christen, Nancy R Cook, Stephanie E Chiuve, Paul M Ridker, J Michael Gaziano
PURPOSE: Cross-sectional and case-control studies generally support a direct association between elevated plasma homocysteine and age-related macular degeneration (AMD), but data from prospective studies are limited. We examined the prospective relation of plasma homocysteine level, its dietary determinants, and risk of AMD in a large cohort of apparently healthy male physicians. METHODS: During a mean follow-up of 11.2 years, we identified 146 incident cases of visually significant AMD (responsible for a reduction of visual acuity to 20/30 or worse), and 146 controls matched for age, smoking status, and time of blood draw...
October 16, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/29023169/associations-of-physical-activity-and-sedentary-behaviour-with-vision-threatening-diabetic-retinopathy-in-indonesian-population-with-type-2-diabetes-mellitus-jogjakarta-eye-diabetic-study-in-the-community-joged-com
#2
D P Dharmastuti, A N Agni, F Widyaputri, S Pawiroranu, Z M Sofro, F S Wardhana, S Haryanto, T W Widayanti, S Kotha, P Gupta, M B Sasongko
PURPOSE: To investigate the association of physical activity (PA) and sedentary behaviour with diabetic retinopathy (DR) in type 2 diabetes adults. METHODS: A community-based cross-sectional study of adults with type 2 diabetes. DR was assessed from disc- and macula-centred fundus photograph, and categorised into mild, moderate non-proliferative DR (NPDR), and Vision-Threatening DR (VTDR). Worse eye was used to determine the person's DR severity. PA was assessed using WHO Global Physical Activity Questionnaire (GPAQ)...
October 12, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28990827/ural-eye-and-medical-study-description-of-study-design-and-methodology
#3
Mukharram Bikbov, Rinat R Fayzrakhmanov, Gyulli Kazakbaeva, Jost B Jonas
PURPOSE: Since there is a scarcity on population-based health information available for Russia, we conducted this project to assess the prevalence of major ocular and systemic disorders and their associated risk factors. METHODS: A population-based cross-sectional study (Ural Eye and Medical Study (UEMS)) was performed in Bashkortostan 1300 km east of Moscow. The sampling frame consisted of all inhabitants aged over 40 years and living in an urban study area in the capital city Ufa and a rural region at 65 km outside of Ufa...
October 9, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28985110/uncorrected-and-corrected-refractive-error-experiences-of-nepalese-adults-a-qualitative-study
#4
Himal Kandel, Jyoti Khadka, Mohan Krishna Shrestha, Sadhana Sharma, Sandhya Neupane Kandel, Purushottam Dhungana, Kishore Pradhan, Bhagavat P Nepal, Suman Thapa, Konrad Pesudovs
PURPOSE: The aim of this study was to explore the impact of corrected and uncorrected refractive error (URE) on Nepalese people's quality of life (QoL), and to compare the QoL status between refractive error subgroups. METHODS: Participants were recruited from Tilganga Institute of Ophthalmology and Dhulikhel Hospital, Nepal. Semi-structured in-depth interviews were conducted with 101 people with refractive error. Thematic analysis was used with matrices produced to compare the occurrence of themes and categories across participants...
October 6, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28976783/prevalence-of-refractive-error-presbyopia-and-unmet-need-of-spectacle-coverage-in-a-northern-district-of-bangladesh-rapid-assessment-of-refractive-error-study
#5
Mohammad Muhit, Hasan Minto, Afroza Parvin, Mohammad Z Jadoon, Johurul Islam, Sumrana Yasmin, Gulam Khandaker
PURPOSE: To determine the prevalence of refractive error (RE), presbyopia, spectacle coverage, and barriers to uptake optical services in Bangladesh. METHOD: Rapid assessment of refractive error (RARE) study following the RARE protocol was conducted in a northern district (i.e., Sirajganj) of Bangladesh (January 2010-December 2012). People aged 15-49 years were selected, and eligible participants had habitual distance and near visual acuity (VA) measured and ocular examinations were performed in those with VA<6/18...
October 4, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28976241/attitudes-and-perceptions-of-eye-care-workers-and-health-administrators-regarding-task-sharing-in-screening-and-detection-for-management-of-diabetic-retinopathy-in-pakistan
#6
Mufarriq Shah, Ayesha Noor, Gail M Ormsby, Rahul Chakrabarti, C Alex Harper, Fakir Amirul Islam, Jill Keeffe
PURPOSE: The shortage of ophthalmologists in many countries is a major barrier to timely provision of eye care. A team work approach to screen, detect and manage diabetic retinopathy (DR) could achieve greater screening coverage of people with diabetes to prevent vision loss. This study aimed to assess the attitudes and perceptions of eye care workers and health administrators regarding task sharing for management of DR. METHODS: Using purposive sampling, 121 eye and health care workers in five selected hospitals in two provinces in Pakistan were recruited...
October 4, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28945495/validity-of-code-based-algorithms-to-identify-primary-open-angle-glaucoma-poag-in-veterans-affairs-va-administrative-databases
#7
K S Biggerstaff, B J Frankfort, S Orengo-Nania, J Garcia, E Chiao, J R Kramer, D White
PURPOSE: The validity of the International Classification of Diseases, 9th revision, Clinical Modification (ICD-9) code for primary open angle glaucoma (POAG) in the Department of Veterans Affairs (VA) electronic medical record has not been examined. We determined the accuracy of the ICD-9 code for POAG and developed diagnostic algorithms for the detection of POAG. METHODS: We conducted a retrospective study of abstracted data from the Michael E. DeBakey VA Medical Center's medical records of 334 unique patients with at least one visit to the Eye Clinic between 1999 and 2013...
September 25, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28945484/evaluation-of-maternal-attachment-self-efficacy-levels-of-depression-and-anxiety-in-mothers-who-have-babies-diagnosed-with-retinopathy-of-prematurity
#8
Gonca Özyurt, Ayhan Özyurt, Taylan Özyurt, Aylin Yaman, A Tulin Berk
PURPOSE: The aim of this study is to evaluate the emotional stress and its effects on parental self-efficacy and mother-infant attachment in mothers whose babies were diagnosed with retinopathy of prematurity (ROP). METHODS: Study sample was consisted of voluntarily participating 82 mothers whose babies were first diagnosed with ROP, 83 mothers of preterm babies without ROP, and 85 mothers of term babies admitting for their routine visits. Sociodemographic data form maternal attachment scale, state-trait anxiety inventory, Edinburgh postnatal depression scale, and parental self-efficacy scale were applied to study participants, and the overall results of three groups were statistically compared...
September 25, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28945466/field-testing-project-to-pilot-world-health-organization-eye-health-indicators-in-latin-america
#9
Kristen A Eckert, Van C Lansingh, Joan McLeod-Omawale, João M Furtado, Francisco Martinez-Castro, Marissa J Carter
PURPOSE: To develop and implement mechanisms to collect, report, and assess the World Health Organization (WHO) core eye health indicators in Chile, Honduras, Mexico, Peru, and Uruguay. METHODS: Simple templates for a situational analysis (of data collection and reporting processes), a national data collection strategy, and a national work plan to implement the core eye health indicators were developed. Public and private sector representatives from the ministries of health (MOHs), national vision committees, and national societies of ophthalmology of each country used these tools with 2013 baseline data to improve their data collection processes and collected 2015 data...
September 25, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28937870/student-led-screening-of-school-children-for-refractive-error-correction
#10
Dipesh Bhattarai, Subodh Gnyawali, Arpan Silwal, Sudan Puri, Anita Shrestha, Man Bahadur Kunwar, Madan Prasad Upadhyay
PURPOSE: Detection and correction of uncorrected refractive errors among 12 million children is an overwhelming task for the 500 currently available eye-care professionals in Nepal. A mid-term review of VISION 2020 goals in Nepal has recommended utilizing alternative human resources that could screen children for visual impairment. This study was conducted to assess the validity of vision screening of school children by trained high school students when compared to optometrist testing as the gold standard...
September 22, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28920761/can-ultra-wide-field-retinal-imaging-replace-colour-digital-stereoscopy-for-glaucoma-detection
#11
Nicola B Quinn, Augusto Azuara-Blanco, Katie Graham, Ruth E Hogg, Ian S Young, Frank Kee
PURPOSE: Ultra-wide field (UWF) retinal imaging (Optomap, Optos plc, Dunfermline, UK) is a novel technique to image the peripheral fundus. The goal of this study was to explore the potential use of UWF imaging to detect glaucoma, and specifically to evaluate the reproducibility of measures of vertical cup-to-disc ratio (VCDR) using ultra-wide field (UWF), and the agreement between UWF and standard colour digital stereoscopy (CDS). METHODS: An observational study...
September 18, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28910571/factors-that-influence-tear-meniscus-area-and-conjunctivochalasis-the-singapore-indian-eye-study
#12
Stanley Poh, Ryan Lee, Jennifer Gao, Carin Tan, Preeti Gupta, Charumathi Sabanayagam, Ching-Yu Cheng, Tien-Yin Wong, Louis Tong
PURPOSE: Assessment of tear film and conjunctiva is critical to define presence and severity of ocular surface disease. We aimed to characterize tear meniscus area (TMA) and conjunctivochalasis by anterior segment optical coherence tomography (ASOCT) in population-based patients and identify potential factors associated with low TMA and severe conjunctivochalasis. METHODS: Study subjects were enrolled from The Singapore Indian Eye Study, a population-based study of Asian Indian in Singapore...
September 14, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28910562/the-epidemiology-of-trachoma-in-mozambique-results-of-96-population-based-prevalence-surveys
#13
Mariamo Abdala, Carlos C Singano, Rebecca Willis, Colin K Macleod, Sharone Backers, Rebecca M Flueckiger, Anselmo Vilanculos, Dantew Terefe, Moises Houane, Fitsum Bikele, Amir Bedri Kello, Philip Downs, Zulquifla Bay, Laura Senyonjo, Anthony W Solomon
PURPOSE: Surveys are needed to guide trachoma control efforts in Mozambique, with WHO guidelines for intervention based on the prevalence of trachomatous inflammation-follicular (TF) in children aged 1-9 years and the prevalence of trichiasis in adults aged 15 years and above. We conducted surveys to complete the map of trachoma prevalence in Mozambique. METHODS: Between July 2012 and May 2015, we carried out cross-sectional surveys in 96 evaluation units (EUs) covering 137 districts...
September 14, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28901810/the-incidence-of-ocular-tuberculosis-in-australia-over-the-past-10-years-2006-2015
#14
Erica Darian-Smith, Ming-Lee Lin, Lyndell L Lim, Peter McCluskey, Anthony J Hall
PURPOSE: To determine the incidence and clinical phenotype of ocular tuberculosis in Australia based on the mandatory jurisdictional health notification records for TB. METHODS: A whole population retrospective case series (Australia). Patients diagnosed with ocular tuberculosis were identified over the past 10 years (1 January 2006 to 31 December 2015) as recorded by individual Health Department jurisdictions per mandatory health notifications. The incidence rates were calculated based on the available Australian census data...
September 13, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28895775/the-prevalence-of-corneal-opacity-in-rural-areas-in-iran-a-population-based-study
#15
Hassan Hashemi, Reza Pakzad, Abbasali Yekta, Mehdi Khabazkhoob
PURPOSE: To determine the prevalence of corneal opacity in rural areas in Iran: a population-based study Methods: This was a cross-sectional population-based study using multi-stage cluster sampling from rural-dwellers of villages in the north and southwest of Iran. All participants underwent vision testing including measurement of visual acuity and refraction followed by slit lamp examination by an ophthalmologist through which the presence of corneal opacity was determined. RESULTS: The participants were 3314 people (response rate = 86...
September 12, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28895765/prevalence-and-incidence-of-optic-neuritis-in-patients-with-different-types-of-uveitis
#16
Dianlin Guo, John Liu, Ran Gao, Samir Tari, Syed Islam
PURPOSE: This database study aims to investigate the incidence and prevalence of optic neuritis (ON) among patients with different types of uveitis. METHODS: A retrospective analysis of the Truven Health MarketScan® database from 2000 to 2014 was conducted. Patients with uveitis were followed until diagnosis of ON or until they were censored. Diagnosis of uveitis and demyelinating diseases of the central nervous system (DD) including ON were based on ICD-9 codes...
September 12, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28891730/evaluation-of-approaches-to-analyzing-continuous-correlated-eye-data-when-sample-size-is-small
#17
Jing Huang, Jiayan Huang, Yong Chen, Gui-Shuang Ying
PURPOSE: To evaluate the performance of commonly used statistical methods for analyzing continuous correlated eye data when sample size is small. METHODS: We simulated correlated continuous data from two designs: (1) two eyes of a subject in two comparison groups; (2) two eyes of a subject in the same comparison group, under various sample size (5-50), inter-eye correlation (0-0.75) and effect size (0-0.8). Simulated data were analyzed using paired t-test, two sample t-test, Wald test and score test using the generalized estimating equations (GEE) and F-test using linear mixed effects model (LMM)...
September 11, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28891729/early-age-related-macular-degeneration-with-cardiovascular-and-renal-comorbidities-an-analysis-of-the-national-health-and-nutrition-examination-survey-2005-2008
#18
Qi Cheng, Jinan B Saaddine, Ronald Klein, Richard Rothenberg, Chiu-Fang Chou, Dora Il'yasova
PURPOSE: A cross sectional study was designed to examine the relationship of early age-related macular degeneration (AMD) with comorbidities of cardiovascular and renal conditions in the representative population using National Health and Nutrition Examination Survey (NHANES), 2005-2008. METHODS: Participants (≥40 years) who underwent retinal photography were included. Early AMD was defined by the retinal digital images. The comorbidities were self-reported stroke and heart disease (HD), including angina pectoris (AP), coronary heart disease (CHD), congestive heart failure (CHF), and myocardial infarction (MI)...
September 11, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28891727/methodology-of-the-zoc-bhvi-high-myopia-cohort-study-the-onset-and-progression-of-myopic-pathologies-and-associated-risk-factors-in-highly-myopic-chinese
#19
Yanxian Chen, Ou Xiao, Xinxing Guo, Decai Wang, Padmaja Sankaridurg, Ian Morgan, Mingguang He
PURPOSE: The increasing prevalence of high myopia and its associated pathologies has raised challenges to ophthalmic services. This project aims to explore the onset and progression of myopic pathologies in highly myopic eyes through a prospective research cohort established in South China. METHODS: Patients with high myopia (sphere ≤ -6.00 D) visiting the optometric clinic of Zhongshan Ophthalmic Center (ZOC) were invited to participate in the baseline examinations and follow-up visit over a 10-year period...
September 11, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28891725/age-related-change-in-corneal-biomechanical-parameters-in-a-healthy-caucasian-population
#20
Ali Riza Cenk Celebi, Ayse Ebru Kilavuzoglu, Ugur Emrah Altiparmak, C Banu Cosar Yurteri
PURPOSE: To determine the effect of aging on corneal biomechanical parameters measured via ocular response analyzer in a homogenous healthy Caucasian population. METHODS: A total of 2039 Caucasian adults were consecutively recruited and divided into seven groups according to decades of age. The difference in mean corneal hysteresis (CH), mean corneal resistance factor (CRF), mean Goldmann-correlated intraocular pressure (IOPg), and mean corneal-compensated IOP (IOPcc) between decades of age were investigated...
September 11, 2017: Ophthalmic Epidemiology
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