Prevalence of amblyopia and its association with refraction in Chinese preschool children aged 36–48 months

2017 ◽  
Vol 102 (6) ◽  
pp. 767-771 ◽  
Author(s):  
Dan Huang ◽  
Xuejuan Chen ◽  
Hui Zhu ◽  
Hui Ding ◽  
Jing Bai ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Multivariate Analysis ◽  
Preschool Children ◽  
Eastern China ◽  
Population Based ◽  
Eye Disease ◽  
Refractive Errors ◽  
Cross Sectional ◽  
Population Based Study ◽  
Disease Study

PurposeTo determine the prevalence of amblyopia and its association with refraction in Chinese preschool children.MethodsThe Yuhuatai Pediatric Eye Disease Study, a cross-sectional, population-based study, was conducted in children aged 36–48 months in Yuhuatai District, Nanjing, China, in 2015. Visual acuity was measured in 1695 eligible children.ResultsOf the 1695 subjects, manifested amblyopia was detected in 25 children (1.47%, 95% CI 0.90% to 2.05%), including 11 and 14 with bilateral and unilateral amblyopia, respectively. Amblyopia prevalence did not differ by gender (p=0.77). Significant refractive errors were found in 22 (88.0%) of children with amblyopia, and strabismus was found in 6 (24.0%) children with amblyopia. In multivariate analysis, amblyopia was significantly associated with hyperopia (≥+2.00 dioptres (D); OR 8.81, 95% CI 3.27 to 23.69, p<0.0001), astigmatism (≥2.00 D; OR 17.90, 95% CI 6.78 to 47.21, p<0.0001) and anisometropia (≥2.00 D; OR 5.87, 95% CI 1.52 to 22.77, p<0.05).ConclusionsThe prevalence of amblyopia in children 36–48 months old in Eastern China was 1.47%. The refractive error is a major risk factor for amblyopia.

scholarly journals Use of Cooking Fuels and Cataract in a Population-Based Study: The India Eye Disease Study

2016 ◽  
Vol 124 (12) ◽  
pp. 1857-1862 ◽  
Author(s):  
Thulasiraj D. Ravilla ◽  
Sanjeev Gupta ◽  
Ravilla D. Ravindran ◽  
Praveen Vashist ◽  
Tiruvengada Krishnan ◽  
...  
Keyword(s):  
Population Based ◽  
Eye Disease ◽  
Population Based Study ◽  
Cooking Fuels ◽  
Disease Study

scholarly journals Visual acuity testability and comparability in Australian preschool children: The Sydney Paediatric Eye Disease Study

Eye ◽  
2012 ◽  
Vol 26 (7) ◽  
pp. 925-932 ◽  
Author(s):  
J F Leone ◽  
G A Gole ◽  
P Mitchell ◽  
A Kifley ◽  
A S-I Pai ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Preschool Children ◽  
Eye Disease ◽  
Disease Study

scholarly journals The prevalence of lower eyelid epiblepharon and its association with refractive errors in Chinese preschool children: a cross-sectional study

2020 ◽  
Author(s):  
Deyi Zhuo ◽  
Si Chen ◽  
Xiaofang Ren ◽  
Bingsong Wang ◽  
Linbo Liu ◽  
...  
Keyword(s):  
Preschool Children ◽  
Lower Eyelid ◽  
Population Based ◽  
Cross Sectional Study ◽  
Refractive Errors ◽  
Slit Lamp ◽  
Sectional Study ◽  
Cross Sectional ◽  
High Prevalence ◽  
Beijing China

Abstract Background: To assess the prevalence and demographics of lower eyelid epiblepharon in Chinese preschool children and to evaluate its association with refractive errors.Methods: In this population-based, cross-sectional study, a total of 3,170 children aged 3 to 6 years from Beijing, China underwent examinations including weight, height, cycloplegic autorefraction and slit-lamp examination of external eyes. The prevalence of lower eyelid epiblepharon in preschool children was evaluated and its association with age, sex, body mass index (BMI), and refractive errors was analyzed using logistic regression analysis.Results: The prevalence of lower eyelid epiblepharon was 26.2%, which decreased with age, with prevalence in 3-, 4-, 5-, and 6-year-olds of 30.6%, 28.0%, 15.0%, and 14.3%, respectively. Boys had a higher risk of having epiblepharon than girls (OR = 1.41; 95%CI, (1.20-1.66)) and no significant correlation was detected between BMI and epiblepharon after adjusting for age and sex (p = 0.062). Epiblepharon was significantly associated with a higher risk of refractive errors, including astigmatism (OR = 3.41; 95% CI, (2.68-4.33)), myopia (OR = 3.55; 95% CI, (1.86-6.76)), and hyperopia (OR = 1.53; 95% CI, (1.18-1.99)). Conclusions: There is a high prevalence of lower eyelid epiblepharon in Chinese preschool children, particularly among boys and younger children. Preschoolers with lower eyelid epiblepharon are subject to a higher risk of developing astigmatism, myopia, and hyperopia, than those without. Increased attention should be paid to this eyelid abnormality in the preschool population.

scholarly journals The prevalence of lower eyelid epiblepharon and its association with refractive errors in Chinese preschool children: a cross-sectional study

2020 ◽  
Author(s):  
Deyi Zhuo ◽  
Si Chen ◽  
Xiaofang Ren ◽  
Bingsong Wang ◽  
Linbo Liu ◽  
...  
Keyword(s):  
Preschool Children ◽  
Lower Eyelid ◽  
Population Based ◽  
Cross Sectional Study ◽  
Refractive Errors ◽  
Slit Lamp ◽  
Sectional Study ◽  
Cross Sectional ◽  
High Prevalence ◽  
Beijing China

Abstract Background: To assess the prevalence and demographics of lower eyelid epiblepharon in Chinese preschool children and to evaluate its association with refractive errors. Methods: In this population-based, cross-sectional study , a total of 3,170 children aged 3 to 6 years from Beijing, China underwent examinations including weight, height, cycloplegic autorefraction and slit-lamp examination of external eyes. The adjusted odds ratios (AORs) and 95% confidence intervals (CI) were calculated to evaluate. The prevalence of lower eyelid epiblepharon in preschool children and its association with refractive errors were analyzed. Results: The prevalence of lower eyelid epiblepharon was 26.2%, which decreased with age with 3-, 4-, 5-, and 6-year-old being 30.6%, 28.0%, 15.0%, and 14.3%, respectively. Boys had a higher risk of having epiblepharon than girls with ORs = 1.41 (95%CI, 1.20-1.66) and no significant correlation was detected between BMI and epiblepharon after adjustment of age and sex. Epiblepharon was associated with significantly higher risk of refractive errors including astigmatism (OR = 3.41; 95% CI, (2.68-4.33)), myopia (OR = 3.55; 95%CI, (1.86-6.76)), and hyperopia (OR = 1.53; 95% CI, (1.18-1.99)). Among astigmatic epiblepharon preschoolers, with-the-rule is predominant (80.9%) and epiblepharon severity was associated with astigmatism severity (p = 0.019). Conclusions: There is a high prevalence of lower eyelid epiblepharon in Chinese preschool children, particularly among boys and the youngers. Preschoolers with lower eyelid epiblepharon are subject to higher risk of developing astigmatism, myopia, and hyperopia, than those without. An increased attention should be paid to this eyelid abnormality in preschool population.

scholarly journals The prevalence of lower eyelid epiblepharon and its association with refractive errors in Chinese preschool children: a cross-sectional study

2020 ◽  
Author(s):  
Deyi Zhuo ◽  
Si Chen ◽  
Xiaofang Ren ◽  
Bingsong Wang ◽  
Linbo Liu ◽  
...  
Keyword(s):  
Preschool Children ◽  
Lower Eyelid ◽  
Population Based ◽  
Cross Sectional Study ◽  
Refractive Errors ◽  
Slit Lamp ◽  
Sectional Study ◽  
Cross Sectional ◽  
High Prevalence ◽  
Beijing China

Abstract Background: To assess the prevalence and demographics of lower eyelid epiblepharon in Chinese preschool children and to evaluate its association with refractive errors.Methods: In this population-based, cross-sectional study , a total of 3,170 children aged 3 to 6 years from Beijing, China underwent examinations including weight, height, cycloplegic autorefraction and slit-lamp examination of external eyes. The adjusted odds ratios (AORs) and 95% confidence intervals (CI) were calculated to evaluate. The prevalence of lower eyelid epiblepharon in preschool children and its association with refractive errors were analyzed.Results: The prevalence of lower eyelid epiblepharon was 26.2%, which decreased with age with 3-, 4-, 5-, and 6-year-old being 30.6%, 28.0%, 15.0%, and14.3%, respectively. Boys had a higher risk of having epiblepharon than girls with ORs = 1.41 (95%CI, 1.20-1.66) and no significant correlation was detected between BMI and epiblepharon after adjustment of age and sex. Epiblepharon was associated with significantly higher risk of refractive errors including astigmatism (OR = 3.41; 95% CI, (2.68-4.33)), myopia (OR = 3.55; 95%CI, (1.86-6.76)), and hyperopia (OR = 1.53; 95% CI, (1.18-1.99)). Among astigmatic epiblepharon preschoolers, with-the-rule is predominant (80.9%) and epiblepharon severity was associated with astigmatism severity (p = 0.019). Conclusions: There is a high prevalence of lower eyelid epiblepharon in Chinese preschool children, particularly among boys and the youngers. Preschoolers with lower eyelid epiblepharon are subject to higher risk of developing astigmatism, myopia, and hyperopia, than those without. An increased attention should be paid to this eyelid abnormality in preschool population.

scholarly journals Refractive errors and visual impairment among children and adolescents in southernmost China

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Li Peng ◽  
Ling Gao ◽  
Yunyan Zheng ◽  
Yanan Dai ◽  
Qing Xie
Keyword(s):  
Visual Acuity ◽  
Visual Impairment ◽  
High Myopia ◽  
Large Population ◽  
Population Based ◽  
Cross Sectional Study ◽  
Refractive Errors ◽  
Spherical Equivalent ◽  
Sectional Study ◽  
Cross Sectional

Abstract Background Refractive errors and visual impairment in southernmost China have not been reported previously. We aim to investigate and determine the age-specific prevalence of myopia, hyperopia, astigmatism, and visual impairment based on a large population cross-sectional study in Hainan area of southernmost tropical province in China. Methods A population-based sample of 31,524 children aged 6–15 years from Hainan was assessed. Non-cycloplegic autorefraction and visual acuity (VA) analyses were performed on all participants and a subgroup of participants undergoing cycloplegia. Results Of all participants, 23.0% presented uncorrected VA (UCVA) was worse than 20/40 in worse eye, 6.0% presented mild presenting visual acuity impairment (PVAI), 7.0% presented moderate PVAI, 0.2% presented severe PVAI in the better eye, and 46.9% presented abnormal UCVA [worse than 20/25 (≥ 6, < 8 years old) and worse than 20/20 (≥ 8 years and older)] at least in one eye. The overall prevalence of myopia [spherical equivalent (SE) ≤  − 0.50 D] and high myopia (SE ≤  − 6.00 D) were 46.0%, 1.0% respectively. Hyperopia [SE ≥  + 1.00 D (≥ 7 years old) and SE ≥  + 2.00 D (≥ 6, < 7 years old)] and significant hyperopia (SE ≥  + 3.00 D) were 4.2 and 0.6%, respectively. Astigmatism [cylinder ≥ 1.00 D (≥ 7 years old) and ≥ 1.75 D (≥ 6, < 7 years old)] was found in 31.9%. Conclusions Myopia was the most common refractive error in southernmost province in China (Hainan). Its prevalence increased with age, while hyperopia prevalence showed a decreasing trend. However, myopia, especially high myopia prevalence was much lower than in other urban regions across China.

scholarly journals Factors associated with the prevalence of anterior open bite among preschool children: A population-based study in Brazil

2014 ◽  
Vol 19 (5) ◽  
pp. 103-109 ◽  
Author(s):  
Daniella Borges Machado ◽  
Valéria Silva Cândido Brizon ◽  
Gláucia Maria Bovi Ambrosano ◽  
Davidson Fróis Madureira ◽  
Viviane Elisângela Gomes ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Preschool Children ◽  
Population Based ◽  
Cross Sectional Study ◽  
Open Bite ◽  
Outcome Variable ◽  
Anterior Open Bite ◽  
Cross Sectional ◽  
Factors Associated ◽  
Using Data

INTRODUCTION: The aim of this study was to identify factors associated with the prevalence of anterior open bite among five-year-old Brazilian children. METHODS: A cross-sectional study was undertaken using data from the National Survey of Oral Health (SB Brazil 2010). The outcome variable was anterior open bite classified as present or absent. The independent variables were classified by individual, sociodemographic and clinical factors. Data were analyzed through bivariate and multivariate analysis using SPSS statistical software (version 18.0) with a 95% level of significance. RESULTS: The prevalence of anterior open bite was 12.1%. Multivariate analysis showed that preschool children living in Southern Brazil had an increased chance of 1.8 more times of having anterior open bite (CI 95%: 1.16 - 3.02). Children identified with alterations in overjet had 14.6 times greater chances of having anterior open bite (CI 95%: 8.98 - 24.03). CONCLUSION: There was a significant association between anterior open bite and the region of Brazil where the children lived, the presence of altered overjet and the prevalence of posterior crossbite.

scholarly journals Prevalence and pattern of refractive errors among Saudi adults

2019 ◽  
Vol 35 (2) ◽  
Author(s):  
Mujeeb Ur Rehman Parrey ◽  
Ekramy Elmorsy
Keyword(s):  
Visual Impairment ◽  
Population Based ◽  
Border Region ◽  
Refractive Errors ◽  
Cross Sectional ◽  
Population Based Study ◽  
Creative Commons ◽  
Care Services ◽  
Northern Border ◽  
Awareness Programs

Background & Objectives: Refractive Errors (RE) are responsible for major portion of the treatable visual impairment and avoidable blindness in the world. The prevalence of RE varies with age, gender, ethnicity, geographical locations and also from time to time due to progresse in eye care services. We aimed to study the prevalence of RE and assess their patterns among Saudi adults of Arar city, the capital of Northern Border Region of Saudi Arabia. Methods: This is a cross-sectional, population-based study. A total number of 966 Saudi adults aged 16 to 39 years were enrolled. The patterns of their RE were studied through auto-refraction evaluation. Results: The prevalence of RE was 45.8%. The most frequent type of RE was myopia in 24.4%, followed by hyperopia 11.9% and astigmatism in 9.5% cases. Ages and genders significantly affect the prevalence of the different patterns of RE (0.033 and 0.012, respectively). Conclusion: The prevalence of RE in Arar city is slightly lower than that previously published in the same targeted age group. Myopia is the main RE. More awareness programs, especially among young adults are recommended for better outcomes. Abbreviations: RE: Refractive Error, SE: Spherical Equivalent, VA: Visual Acuity, VI: Visual Impairment. How to cite this:Parrey MUR, Elmorsy E. Prevalence and pattern of refractive errors among Saudi adults. Pak J Med Sci. 2019;35(2):---------.  doi: https://doi.org/10.12669/pjms.35.2.648 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals Prevalence of strabismus among preschool children in eastern China and comparison at a 5-year interval: a population-based cross-sectional study

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e055112
Author(s):  
Yue Wang ◽  
Andi Zhao ◽  
Xiaohan Zhang ◽  
Dan Huang ◽  
Hui Zhu ◽  
...  
Keyword(s):  
Prevalence Rate ◽  
Eastern China ◽  
Population Based ◽  
Cross Sectional Study ◽  
Common Type ◽  
Sectional Study ◽  
Intermittent Exotropia ◽  
Cross Sectional ◽  
Population Based Study ◽  
Convergence Insufficiency

ObjectiveTo update data on strabismus and evaluate the changes in prevalence and patterns among preschoolers in eastern China over a period of 5 years.DesignNanjing Eye Study, a longitudinal population-based study.SettingRecruitment and testing in kindergartens in Yuhuatai District, Nanjing.Participants2300 eligible children.Main outcome measuresComprehensive ocular examinations were conducted in 1986 children aged 48–<60 months in Nanjing Eye Study (NES, 2016–2017), including visual acuity, ocular alignment, refractive error and ocular structures evaluation. The prevalence rate and pattern of strabismus were calculated and compared with those from the Nanjing Pediatric Vision Project (NPVP, 2011–2012) in children of the same age, of the same area and using the same diagnostic criteria.ResultsThe overall prevalence rate of strabismus in NES was 5.56% (95% CI 4.54% to 6.57%), which was not significantly different from that in NPVP (4.99%, 95% CI 4.13% to 5.84%, p=0.40). The prevalence of subtypes of strabismus underwent significant changes, with significant increase in intermittent exotropia (IXT) in NES (2.78% vs 4.69%, p=0.001) and significant decrease in constant exotropia (1.17% vs 0.15%, p<0.001). Significant change in pattern was observed in IXT, where the proportion of the convergence insufficiency type (2.90% vs 27.17%) increased and exceeded the divergence excess type (20.29% vs 11.96%) to be the second common type (p<0.001).ConclusionThe prevalence of strabismus appeared stable in children aged 48–<60 months in eastern China at a 5-year interval. The prevalence of IXT increased significantly, and the convergence insufficiency type became more prevalent in patients with IXT. Timely detection and intervention of IXT are important among preschoolers.

scholarly journals The prevalence of lower eyelid epiblepharon and its association with refractive errors in Chinese preschool children: a cross-sectional study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Deyi Zhuo ◽  
Si Chen ◽  
Xiaofang Ren ◽  
Bingsong Wang ◽  
Linbo Liu ◽  
...  
Keyword(s):  
Preschool Children ◽  
Lower Eyelid ◽  
Population Based ◽  
Cross Sectional Study ◽  
Refractive Errors ◽  
Slit Lamp ◽  
Sectional Study ◽  
Cross Sectional ◽  
High Prevalence ◽  
Beijing China

Abstract Background To assess the prevalence and demographics of lower eyelid epiblepharon in Chinese preschool children and to evaluate its association with refractive errors. Methods In this population-based, cross-sectional study, a total of 3170 children aged 3 to 6 years from Beijing, China underwent examinations including weight, height, cycloplegic autorefraction and slit-lamp examination of external eyes. The prevalence of lower eyelid epiblepharon in preschool children was evaluated and its association with age, sex, body mass index (BMI), and refractive errors was analyzed using logistic regression analysis. Results The prevalence of lower eyelid epiblepharon was 26.2%, which decreased with age, with prevalence in 3-, 4-, 5-, and 6-year-olds of 30.6, 28.0, 15.0, and 14.3%, respectively. Boys had a higher risk of having epiblepharon than girls (OR = 1.41; 95%CI, (1.20–1.66)) and no significant correlation was detected between BMI and epiblepharon after adjusting for age and sex (p = 0.062). Epiblepharon was significantly associated with a higher risk of refractive errors, including astigmatism (OR = 3.41; 95% CI, (2.68–4.33)), myopia (OR = 3.55; 95% CI, (1.86–6.76)), and hyperopia (OR = 1.53; 95% CI, (1.18–1.99)). Conclusions There is a high prevalence of lower eyelid epiblepharon in Chinese preschool children, particularly among boys and younger children. Preschoolers with lower eyelid epiblepharon are subject to a higher risk of developing astigmatism, myopia, and hyperopia, than those without. Increased attention should be paid to this eyelid abnormality in the preschool population.

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