scholarly journals The Refractive Error and Vision Impairment Estimation With Spectacle data (REVIEWS) study

2021 ◽  
Author(s):  
Michael Moore ◽  
James Loughman ◽  
John S Butler ◽  
Arne Ohlendorf ◽  
Siegfried Wahl ◽  
...  
Keyword(s):  
Health Survey ◽  
Refractive Error ◽  
Population Distribution ◽  
Risk Estimation ◽  
Population Based ◽  
Vision Impairment ◽  
Cross Sectional ◽  
Bootstrap Analysis ◽  
Spectacle Lens ◽  
Sales Data

Objective: To investigate whether spectacle lens sales data can be used to estimate the population distribution of refractive error amongst ametropes and hence estimate the current and future risk of vision impairment. Design: Cross Sectional Study Subjects: A total 141,547,436 spectacle lens sales records from an international European lens manufacturer between the years 1998 and 2016. Methods: Anonymized patient spectacle lens sales data including refractive error information was provided by a major European spectacle lens manufacturer. Data from the Gutenberg Health Survey was digitized to allow comparison of a representative, population-based sample to the spectacle lens sales data. A bootstrap analysis was completed to assess the comparability of both datasets. The expected level of vision impairment due to myopia at age 75 was calculated for both datasets using a previously published risk estimation equation combined with a saturation function. Main Outcome Measures: Comparability of spectacle lens sales data on refractive error to typical population surveys of refractive error and its potential utility to predict vision impairment due to refractive error. Results: Equivalent estimates of the population distribution of spherical equivalent refraction can be provided from spectacle lens data within limits. For myopia, the population distribution was equivalent to the Gutenberg Health Survey (≤ 5% deviation) for levels ≤-2.0 dioptres, while for hyperopia the distribution was equivalent (≤ 5% deviation) for levels ≥ +3.0 diopters. The estimated rates of vision impairment due to myopia were not statistically significantly different (χ2 = 182, DoF = 169, p = 0.234) between the spectacle lens data and Gutenberg Health Survey data. Conclusions: The distribution of refractive error and hence the risk of vision impairment due to refractive error within a population can be determined using spectacle lens sales data. Pooling this type of data from multiple industry sources could provide a cost effective, timely and globally representative mechanism for monitoring the evolving epidemiology of refractive error and associated vision impairment.

The prevalence and causes of visual impairment in Dariyah, a rural community in Saudi Arabia

2021 ◽  
Vol 80 (1) ◽  
Author(s):  
Waleed Alghamdi ◽  
Godwin O. Ovenseri-Ogbomo
Keyword(s):  
Saudi Arabia ◽  
Visual Impairment ◽  
Rural Community ◽  
Refractive Error ◽  
Population Based ◽  
Vision Impairment ◽  
Health Examination ◽  
Refractive Errors ◽  
Cross Sectional ◽  
Eye Examination

Background: Visual impairment is disproportionately distributed between rural and urban dwellers. Rural dwellers have limited access to the eye care services that are available in urban cities.Aim: The aim of this study was to determine the prevalence and causes of visual impairment in Dariyah, a rural community in the Qassim region, Saudi Arabia.Setting: This research comprised a population-based assessment of the vision and visual status of the inhabitants of Dariyah community.Methods: A cross-sectional descriptive study was conducted amongst the inhabitants of the community of Dariyah. A comprehensive eye examination consisting of visual acuity, ocular health examination, objective and subjective refraction was performed. The examinations were conducted by registered ophthalmologists and optometrists from the Qassim University. Vision impairments were categorised according to the International Classification of Diseases (ICD), Section 9D90, ‘Vision impairment including blindness’ (2018).Results: In all, 68 (24.5%) participants had vision impairment (using the better-seeing eye), with refractive errors being the main cause of vision impairment. Other causes of vision impairment included cataract (20, 7.2%), trichiasis (5, 1.8%) and glaucoma (2, 0.7%). Refractive errors were present in 193 (69.7%), with astigmatism being the commonest refractive error. About 60% of those with refractive errors presented without spectacles for correction, and 20% reported that they had never had an eye examination. Refractive errors could not be determined in 19 (6.9%) of the subjects because of conditions such as matured cataract and other ocular abnormalities.Conclusion: Uncorrected refractive error was found to be the leading cause of vision impairment in this rural community in Saudi Arabia.

Rapid assessment of avoidable blindness in Papua New Guinea: a nationwide survey

2018 ◽  
Vol 103 (3) ◽  
pp. 338-342 ◽  
Author(s):  
Ling Lee ◽  
Fabrizio D'Esposito ◽  
Jambi Garap ◽  
Geoffrey Wabulembo ◽  
Samuel Peter Koim ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
Refractive Error ◽  
Rapid Assessment ◽  
New Guinea ◽  
Nationwide Survey ◽  
Population Based ◽  
Vision Impairment ◽  
Cross Sectional ◽  
National Capital ◽  
Uncorrected Refractive Error

ObjectiveTo estimate the prevalence and main causes of blindness and vision impairment in people aged 50 years and older in Papua New Guinea (PNG).DesignNational cross-sectional population-based survey in National Capital District (NCD), Highlands, Coastal and Islands regions.MethodsAdults aged 50 years and above were recruited from 100 randomly selected clusters. Each participant underwent monocular presenting and pinhole visual acuity (VA) assessment and lens examination. Those with pinhole VA<6/12 in either eye had a dilated fundus examination to determine the primary cause of reduced vision. Those with obvious lens opacity were interviewed on barriers to cataract surgery.ResultsA total of 4818 adults were examined. The age-adjusted and sex-adjusted prevalence of blindness (VA <3/60), severe vision impairment (SVI, VA <6/60 but ≥3/60), moderate vision impairment (MVI, VA <6/18 but ≥6/60) and early vision impairment (EVI, VA <6/12 but ≥6/18) was 5.6% (95% CI 4.9% to 6.3%), 2.9% (95% CI 2.5% to 3.4%), 10.9% (95% CI 9.9% to 11.9%) and 7.3% (95% CI 6.6% to 8.0%), respectively. The main cause of blindness, SVI and MVI was cataract, while uncorrected refractive error was the main cause of EVI. A significantly higher prevalence of blindness, SVI and MVI occurred in the Highlands compared with NCD. Across all regions, women had lower cataract surgical coverage and spectacle coverage than men.ConclusionsPNG has one of the highest reported prevalence of blindness globally. Cataract and uncorrected refractive error are the main causes, suggesting a need for increased accessible services with improved resources and advocacy for enhancing eye health literacy.

scholarly journals The Gambia National Eye Health Survey 2019: survey protocol

2021 ◽  
Vol 6 ◽  
pp. 10
Author(s):  
Abba Hydara ◽  
Andrew Bastawrous ◽  
Suzannah Bell ◽  
Dorothy Boggs ◽  
Tess Bright ◽  
...  
Keyword(s):  
Health Services ◽  
Health Survey ◽  
Population Based ◽  
Assistive Technologies ◽  
The Gambia ◽  
Vision Impairment ◽  
Eye Disease ◽  
Eye Health ◽  
Nationally Representative ◽  
Survey Protocol

Two national surveys of vision impairment and blindness were undertaken in The Gambia in 1986 and 1996. These provided data for the inception of The Gambia’s National Eye Health Programme (NEHP) within the Ministry of Health and Social Welfare. There have been important developments in the eye health services provided by the NEHP in the last 20 years. At the same time, the population has also undergone major demographic changes that may have led to substantial changes in the burden of eye disease. We conducted a National Eye Health Survey of vision impairment, blindness and its comorbidities in adults in The Gambia in 2019. We examined a nationally representative population-based sample of adults 35 years and above to permit direct comparison with the data available from the previous surveys. Alongside a comprehensive vision and eye examination, the survey provides nationally representative data on important comorbidities in this population: diabetes, hypertension, obesity, hearing impairment, disability and mental health. Secondly, it estimates access to assistive technologies and eye health services. Thirdly, it is powered to allow a five-year follow up cohort study to measure the incidence and progression of eye disease.

scholarly journals The Gambia National Eye Health Survey 2019: survey protocol

2021 ◽  
Vol 6 ◽  
pp. 10
Author(s):  
Abba Hydara ◽  
Andrew Bastawrous ◽  
Suzannah Bell ◽  
Dorothy Boggs ◽  
Tess Bright ◽  
...  
Keyword(s):  
Health Services ◽  
Health Survey ◽  
Population Based ◽  
Assistive Technologies ◽  
The Gambia ◽  
Vision Impairment ◽  
Eye Disease ◽  
Eye Health ◽  
Nationally Representative ◽  
Survey Protocol

Two national surveys of vision impairment and blindness were undertaken in The Gambia in 1986 and 1996. These provided data for the inception of The Gambia’s National Eye Health Programme (NEHP) within the Ministry of Health and Social Welfare. There have been important developments in the eye health services provided by the NEHP in the last 20 years. At the same time, the population has also undergone major demographic changes that may have led to substantial changes in the burden of eye disease. We conducted a National Eye Health Survey of vision impairment, blindness and its comorbidities in adults in The Gambia in 2019. We examined a nationally representative population-based sample of adults 35 years and above to permit direct comparison with the data available from the previous surveys. Alongside a comprehensive vision and eye examination, the survey provides nationally representative data on important comorbidities in this population: diabetes, hypertension, obesity, hearing impairment, disability and mental health. Secondly, it estimates access to assistive technologies and eye health services. Thirdly, it is powered to allow a five-year follow up cohort study to measure the incidence and progression of eye disease.

scholarly journals Astigmatism among children in Jeddah, Saudi Arabia: prevalence and associated factors

2021 ◽  
Vol 19 (2) ◽  
Author(s):  
Ahmed Basheikh ◽  
Sara Howldar ◽  
Mohammed Basendwah ◽  
Rasha Baqais ◽  
Motaz Bamakrid ◽  
...  
Keyword(s):  
Risk Factors ◽  
Saudi Arabia ◽  
Refractive Error ◽  
Reading Fluency ◽  
Oral Reading ◽  
Pediatric Population ◽  
Poor Performance ◽  
Population Based ◽  
Cross Sectional Study ◽  
Cross Sectional

Background: Undiagnosed astigmatism among children may result in multiple unfavourable consequences, such as poor performance on cognitive and language tasks, reduced oral reading fluency, behavioural disorders, and amblyopia development. In contrast, astigmatism is easily correctable in young children, which highlights the need for periodic assessment of its prevalence amongpediatric populations. Purpose: This study aimed to assess the prevalence of astigmatism among the pediatric population in Jeddah, Saudi Arabia, and to assess the rate of newly detected cases (incidental astigmatism) and the associated risk factors. Patients and methods: This cross-sectional study was conducted among visitors of the awareness campaign about amblyopia, which took place in the Red Sea Mall, Jeddah, Saudi Arabia, on January 29–30, 2016. Children aged 2–15 years were enrolled in the study to undergo noncycloplegic eye examination using an autorefractometer for measuring cylindrical refractive error (Cyl). The calculated sample size for the studied age group of the population of Jeddah, Saudi Arabia was 291. Astigmatism was defined as Cyl 1 diopter in either eye. Multivariate binomial regression was used to analyze the predictors of incidental astigmatism. Results: We examined the eyes of 347 children, mean age = 7.788 (standard deviation = 2.69) years, females = 53.3%. The overall prevalence of astigmatism was 41.5%, whereas the prevalence of incidental astigmatism was 40.6% among 342 children without apparent astigmatism. The prevalence of incidental astigmatism was associated with a previous diagnosis of amblyopia, having a sibling known to have amblyopia, and wearing spectacles. However, only wearing spectacles was shown to predict incidental astigmatism in the multivariate analysis. Conclusion: Astigmatism is highly prevalent among children in Western Saudi Arabia, with the majority being undiagnosed before this screening campaign. These findings urge for further nationwide, population-based studies to address the burden of refractive errors among children in Saudi Arabia. Key words: amblyopia, incidental, population, refractive error, risk factors, Saudi

scholarly journals Association of e-cigarette use with oral health: a population-based cross-sectional questionnaire study

2018 ◽  
Vol 41 (2) ◽  
pp. 354-361 ◽  
Author(s):  
Priyanka Huilgol ◽  
Surya P Bhatt ◽  
Niranjan Biligowda ◽  
Nicole C Wright ◽  
J Michael Wells
Keyword(s):  
Oral Health ◽  
Health Survey ◽  
Multivariable Analysis ◽  
Population Based ◽  
Permanent Tooth ◽  
Permanent Teeth ◽  
Behavioral Risk ◽  
Cigarette Use ◽  
Cross Sectional ◽  
The Impact

Abstract Background The impact of daily or intermittent electronic cigarette (e-cigarette) use on oral health is unknown. Methods We performed a cross-sectional analysis using the 2016 Behavioral Risk Factor Surveillance System data. Poor oral health was determined by the number of permanent teeth removed due to non-traumatic causes, and e-cigarette use determined by daily or intermittent use within 30 days prior to survey administration. We performed logistic regression analysis to test associations between e-cigarette use and oral health with adjustment for factors associated with poor oral health, survey clustering, strata and weight. Results We included survey responses from 456 343 adults. Over half of respondents (51.5%) reported having at least one permanent tooth removed because of tooth decay or gum disease in their lifetime. Daily e-cigarette use was reported by 4957 (1.1%) of respondents. In multivariable analysis, daily e-cigarette use, was independently associated with a 78% higher odds of poor oral health (adjusted OR = 1.78, 95% CI: 1.39–2.30; P < 0.001). Conclusions In a population-based health survey of US adults, self-reported health behavior and outcomes, daily use, but not intermittent use of e-cigarettes was independently associated with poor oral health. Care must be exercised in seeking ‘healthier’ cigarette alternatives.

scholarly journals The prevalence of chronic pain and pain-related interference in the Canadian population from 1994 to 2008

2011 ◽  
Vol 31 (4) ◽  
pp. 157-164 ◽  
Author(s):  
ML Reitsma ◽  
JE Tranmer ◽  
DM Buchanan ◽  
EG Vandenkerkhof
Keyword(s):  
Chronic Pain ◽  
Health Survey ◽  
Canadian Community Health Survey ◽  
Population Based ◽  
Cross Sectional ◽  
Population Based Study ◽  
Canadian Population ◽  
Community Health Survey ◽  
Prevalence Of Pain ◽  
Using Data

Introduction Estimates of the prevalence of chronic pain worldwide and in Canada are inconsistent. Our primary objectives were to determine the prevalence of chronic pain by sex and age and to determine the prevalence of pain-related interference for Canadian men and women between 1994 and 2008. Methods Using data from seven cross-sectional cycles in the National Population Health Survey and the Canadian Community Health Survey, we defined two categorical outcomes, chronic pain and pain-related interference with activities. Results Prevalence of chronic pain ranged from 15.1% in 1996/97 to 18.9% in 1994/95. Chronic pain was most prevalent among women (range: 16.5% to 21.5%), and in the oldest (65 years plus) age group (range: 23.9% to 31.3%). Women aged 65 years plus consistently reported the highest prevalence of chronic pain (range: 26.0% to 34.2%). The majority of adult Canadians who reported chronic pain also reported at least a few activities prevented due to this pain (range: 11.4% to 13.3% of the overall population). Conclusion Similar to international estimates, this Canadian population-based study confirms that chronic pain persists and impacts daily activities. Further study with more detailed definitions of pain and pain-related interference is warranted.

scholarly journals Visual impairment and blindness: an overview of prevalence and causes in Brazil

2009 ◽  
Vol 81 (3) ◽  
pp. 539-549 ◽  
Author(s):  
Solange R. Salomão ◽  
Márcia R. K. H. Mitsuhiro ◽  
Rubens Belfort Jr
Keyword(s):  
Older Adults ◽  
Visual Impairment ◽  
School Children ◽  
Refractive Error ◽  
Public Health Problem ◽  
Population Based ◽  
Epidemiologic Studies ◽  
Important Public Health Problem ◽  
Cross Sectional ◽  
Refractive Correction

Our purpose is to provide a summary overview of blindness and visual impairment on the context of recent Brazilian ocular epidemiologic studies. Synthesis of data from two cross-sectional population-based studies - the São Paulo Eye Study and the Refractive Error in School Children Study is presented. 3678 older adults and 2441 school children were examined between July 2004 and December 2005. Prevalence of blindness in older adults using presenting visual acuity was 1.51% decreasing to 1. 07% with refractive correction. The most common causes of blindness in older adults were retinal disorders, followed by cataract and glaucoma. In school children, the prevalence of uncorrected visual impairment was 4.82% decreasing to 0.41% with refractive correction. The most common cause of visual impairment in school children was uncorrected refractive error. Visual impairment and blindness in Brazil is an important public health problem. It is a significant problem in older Brazilians, reinforcing the need to implement prevention of blindness programs for elderly people with emphasis on those without schooling. In school-children cost-effective strategies are needed to address a readily treatable cause of vision impairment - prescription and provision of glasses.

scholarly journals Migraine and Mental Health in a Population-Based Sample of Adolescents

2016 ◽  
Vol 44 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Serena L. Orr ◽  
Beth K. Potter ◽  
Jinhui Ma ◽  
Ian Colman
Keyword(s):  
Mental Health ◽  
Anxiety Disorders ◽  
Mood Disorders ◽  
Health Survey ◽  
Short Form ◽  
Large Population ◽  
Depression Scale ◽  
Population Based ◽  
Inverse Association ◽  
Cross Sectional

AbstractObjective: To explore the relationship between migraine and anxiety disorders, mood disorders and perceived mental health in a population-based sample of adolescents. Methods: The Canadian Community Health Survey (CCHS) is a cross-sectional health survey sampling a nationally representative group of Canadians. In this observational study, data on all 61,375 participants aged 12-19 years from six survey cycles were analyzed. The relationships between self-reported migraine, perceived mental health, and mood/anxiety disorders were modeled using univariate and multivariate logistic regression. The migraine–depression association was also explored in a subset of participants using the Composite International Diagnostic Interview–Short Form (CIDI–SF) depression scale. Results: The odds of migraine were higher among those with mood disorders, with the strongest association in 2011-2 (adjusted odds ratio [aOR]=4.59; 95% confidence interval [CI95%]=3.44-6.12), and the weakest in 2009-10 (aOR=3.06, CI95%=2.06-4.55). The migraine–mood disorders association was also significant throughout all cycles, other than 2011-2, when the CIDI–SF depression scale was employed. The odds of migraine were higher among those with anxiety disorders, with the strongest association in 2011-2 (aOR=4.21, CI95%=3.31-5.35) and the weakest in 2010 (aOR=1.87, CI95%=1.10-3.37). The inverse association between high perceived mental health and the odds of migraine was observed in all CCHS cycles, with the strongest association in 2011-2 (aOR=0.58, CI95%=0.48-0.69) and the weakest in 2003-4 (aOR=0.75, CI95%=0.62-0.91). Conclusions: This study provides evidence, derived from a large population-based sample of adolescents, for a link between migraine and mood/anxiety disorders.

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