The Influence of Parental Myopia on Children’s Myopia in Different Generations of Parent-Offspring Pairs in South Korea

Ahn, Hyunmin; Lyu, Il Suk; Rim, Tyler Hyungtaek

doi:10.1080/08820538.2017.1284870

Cited by 8 publications

(5 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a study on the prevalence of ametropia in the second generation of Australian school age children, the prevalence of myopia among the second-generation Australian school age children in the Middle East was similar to that of children in other school districts in Australia and higher than that reported in the Middle East [29]. Some studies even showed that environmental factors played a greater role in these two factors [30, 31].…”

Section: Discussionmentioning

confidence: 99%

“…In a recent clinical trial among 6-year-old children in Guangzhou, China, the incidence of myopia was significantly reduced over the 3 years after the addition of 40 min of outdoor activity to the daily curriculum [13]. When considering that environmental factors play a leading role in myopia [30, 31, 58], some preventive methods should be implemented, such as increasing the time of outdoor activities, making the indoor light closer to that of the outdoors, avoiding late sleep, and using atropine and other effective measures.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence of Myopia and Influencing Factors among High School Students in Nantong, China: A Cross-Sectional Study

et al. 2022

View full text Add to dashboard Cite

Introduction: Myopia is an increasingly serious health problem in China. The aim of this study was to investigate the prevalence of myopia and the factors associated with it among students in Nantong, China, to show the current status of myopia prevention. Methods: This school-based, cross-sectional study examined students from all high schools in an urban area of Nantong, China. At least two classes were randomly selected from each grade of each school. A self-reported questionnaire was used to collect the required information.Univariate analyses were performed to identify associations between myopia and various parameters.Non-cycloplegic autorefraction and visual acuity were assessed for each student. Factors that were statistically significant in univariate analyses were selected for multivariate analyses. Myopia was defined as a spherical equivalent refraction of ≤ -0.5 diopters. Results: The completion percentage of students out of the whole high school was 6.5%.The overall prevalence of myopia was 94%. The response percentage of the number of validated questionnaires was 90.2%, of which 50.2% (n = 1,466) were from male participants, and 49.8% (n = 1,452) were from female participants. The mean (SD) of age was 15.22±1.75 years, ranging from 12–18 years. Factors such as female sex, older age, parental myopia, sitting in the back of the classroom, increased homework time, and minimal outdoor activity were significantly associated with a higher risk of myopia (P < 0.05). In the myopic population, most students (67.9%) did not take measures to prevent further progression of myopia. Conclusion: The prevalence of myopia among high school students was 94%. Female sex, older age, parental myopia, sitting in the back of the classroom, increased homework time, and minimal outdoor activity were significantly associated with a higher risk of myopia. Most students with myopia (67.9%) did not take measures to prevent further progression of myopia.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Prevalence of Myopia and Influencing Factors among High School Students in Nantong, China: A Cross-Sectional Study

et al. 2022

View full text Add to dashboard Cite

show abstract

“…10 In another study on high myopia across three different generations in Korea, results showed that the environmental portion of the phenotypic variance increased and the additive genetic portion decreased as South Korea became more urbanised. 33 Therefore, it remains to be established how geneenvironment interactions contribute to myopia within various populations. 2 In the present study, we analysed the effects of perinatal factors, such as delivery manner, delivery mode and pregnancy diseases, on the prevalence of myopia.…”

Section: Discussionmentioning

confidence: 99%

Prenatal and neonatal factors for the development of childhood visual impairment in primary and middle school students: a cross-sectional survey in Guangzhou, China

Lijuan

Chen

et al. 2020

BMJ Open

View full text Add to dashboard Cite

ObjectivesIn this cross-sectional survey, we sought to determine the prevalence of and the influence of prenatal and neonatal factors on childhood visual impairment without correction (VIUC) in a paediatric population from Guangzhou, China.SettingThe health survey covered 11 administrative districts in Guangzhou, including 991 schools.ParticipantsAll of the primary and middle school students in Guangzhou were invited to complete an online questionnaire with the help of their parents. The results of physical examinations were reported by school medical departments. The results of the questionnaire were collected by the researchers. In total, 253 301 questionnaires were collected.Primary outcome measuresThe students’ uncorrected visual acuity (UCVA) was examined by trained optometrists by standard logarithmic visual acuity charts. VIUC was defined by UCVA (of the better eye) (UCVA <6/12) with three levels: light VIUC (UCVA ≥6/18 to <6/12), mild VIUC (UCVA ≥6/60 to <6/18) and severe VIUC (UCVA <6/60).ResultsA total of 39 768 individuals (15.7%) had VIUC, and the rate was much higher among grade 10 to 12 students (51.4%) than among grade 1 to 6 students (6.71%). The following factors were significantly associated with an increased risk of VIUC: female gender, high birth weight, formula feeding, not having siblings, higher level of parents’ education, parental myopia, much homework time and little outdoor activity. Delivery mode was not associated with the risk of VIUC.ConclusionsThis study validates known major prenatal/genetic, perinatal and postnatal factors for childhood VIUC. In conclusion, prenatal and perinatal factors can affect the onset of childhood VIUC, but parental myopia and postnatal factors are the main factors.

show abstract

“…There are some further considerations around parental myopia as a risk factor. The additive genetic portion of phenotypic variance is smaller in younger families, reflecting the trend for increasing environmental influences 81. The odds of a child with two myopic parents becoming myopic is thus different to the odds of a myopic child having two myopic parents.…”

Section: Background To the Need For Myopia Controlmentioning

confidence: 96%

IMI – Myopia Control Reports Overview and Introduction

Wolffsohn

Flitcroft

Gifford

et al. 2019

Invest. Ophthalmol. Vis. Sci.

132

121

View full text Add to dashboard Cite

With the growing prevalence of myopia, already at epidemic levels in some countries, there is an urgent need for new management approaches. However, with the increasing number of research publications on the topic of myopia control, there is also a clear necessity for agreement and guidance on key issues, including on how myopia should be defined and how interventions, validated by well-conducted clinical trials, should be appropriately and ethically applied. The International Myopia Institute (IMI) reports the critical review and synthesis of the research evidence to date, from animal models, genetics, clinical studies, and randomized controlled trials, by more than 85 multidisciplinary experts in the field, as the basis for the recommendations contained therein. As background to the need for myopia control, the risk factors for myopia onset and progression are reviewed. The seven generated reports are summarized: (1) Defining and Classifying Myopia, (2) Experimental Models of Emmetropization and Myopia, (3) Myopia Genetics, (4) Interventions for Myopia Onset and Progression, (5) Clinical Myopia Control Trials and Instrumentation, (6) Industry Guidelines and Ethical Considerations for Myopia Control, and (7) Clinical Myopia Management Guidelines.

show abstract

The Influence of Parental Myopia on Children’s Myopia in Different Generations of Parent-Offspring Pairs in South Korea

Abstract: With myopia, the environmental portion of the phenotypic variance increased and the additive genetic portion decreased as South Korea became more urbanized. With high myopia, the additive genetic portion remained roughly constant at approximately 60%, despite the urbanization.

Cited by 8 publications

References 36 publications

Prevalence of Myopia and Influencing Factors among High School Students in Nantong, China: A Cross-Sectional Study

Prevalence of Myopia and Influencing Factors among High School Students in Nantong, China: A Cross-Sectional Study

Prenatal and neonatal factors for the development of childhood visual impairment in primary and middle school students: a cross-sectional survey in Guangzhou, China

IMI – Myopia Control Reports Overview and Introduction

Contact Info

Product

Resources

About