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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
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Genes for childhood myopia.

Yu Yao Wang1, Li Jia Chen2, Clement C Tham3

  • 1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong.

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Childhood myopia development involves genetic and environmental factors. This review compares genetic variants associated with myopia in children versus adults, highlighting differences in effect sizes.

Keywords:
GeneticsMyopiaSingle nucleotide polymorphisms (SNPs)

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Area of Science:

  • Ophthalmology
  • Genetics
  • Pediatrics

Background:

  • Myopia (nearsightedness) arises from complex genetic and environmental interactions.
  • Childhood myopia development is strongly influenced by genetic predisposition.
  • Over 400 myopia-associated loci have been identified, primarily through adult genome studies.

Purpose of the Study:

  • To review genetic variants linked to myopia.
  • To compare the effect sizes of these variants in children and adults.
  • To address the gap in pediatric myopia genetic research.

Main Methods:

  • Literature review of myopia genetic studies.
  • Analysis of candidate gene studies.
  • Examination of whole exome sequencing data.
  • Evaluation of genome-wide association studies (GWAS) and meta-analyses.

Main Results:

  • Numerous genetic loci associated with myopia have been identified.
  • Fewer genetic single nucleotide polymorphisms (SNPs) from adult GWAS have been replicated in children.
  • Significant differences in effect sizes of myopia-associated variants between pediatric and adult populations may exist.

Conclusions:

  • Genetic factors play a crucial role in myopia development, especially in childhood.
  • Replication of adult-identified myopia GWAS findings in children is limited.
  • Further research is needed to understand population-specific genetic influences on myopia.