Research Article
Prevalence of Heterophoria in Tibetan Grade-One Students: The Lhasa Childhood Eye Study
Table 7
Prevalence of heterophoria in previous studies.
| | Author | Year | Country | Age | Prevalence | Risk factors |
| | Hashemi | 2017 | Iran | 3–93 | 28.37 | Age, region | | Leone | 2010 | Australia | 6–12 | 52.2 | Refractive error, ethnicity | | Sandfeld | 2018 | Denmark | 4.5–7 | 4.0 | / | | Lança | 2016 | United Kingdom | 6–13 | 38.0 | / | | Larsson | 2015 | Sweden | 10 | 80.2 | / | | Lin | 2017 | China | 6–20 | 64.1 | Gender |
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