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- Publisher Website: 10.1007/s10384-020-00733-4
- Scopus: eid_2-s2.0-85081749377
- PMID: 32180049
- WOS: WOS:000520695700001
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Article: Prevalence and associations of myopia in Hong Kong primary school students
Title | Prevalence and associations of myopia in Hong Kong primary school students |
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Authors | |
Keywords | Refractive error Myopia Hyperopia Paediatric ophthalmology |
Issue Date | 2020 |
Publisher | Springer Japan. The Journal's web site is located at http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-10074-70-18952714-0,00.html |
Citation | Japanese Journal of Ophthalmology, 2020, v. 64 n. 4, p. 437-449 How to Cite? |
Abstract | Purpose:
To examine the prevalence of myopia in primary school children in Hong Kong, and the risk factors for myopia development.
Study design:
A cross-sectional study.
Methods:
Subjective refraction and axial length were measured in all participants. Structured questionnaire was completed by the parents to assess risk factors of myopia.
Results:
A total of 1396 children (491 boys) from Grade 1 to Grade 6 from 4 primary schools in Sham Shui Po district of Hong Kong participated. All participants underwent non-cycloplegic refraction. The overall prevalence of myopia (spherical equivalent, SE ≤ -0.5 diopter [D]) was 37.7%, which significantly increased with age, from 13.3% at grade 1 to 54.7% at grade 6. The prevalence of moderate myopia (-3.0D < SE < -6.0D) increased from 1.6% at grade 1 to 18.2% at grade 6 and the prevalence of high myopia (SE < = -6.0 D and/or AL ≥ 26.5 mm) increased from 0.94% (7/747) in grade 1-3 students to 1.85% (12/649) in grade 4-6 students. Among the students with myopia, only 23.6% of the parents knew their children had refractive errors and only 19.8% of the children wore glasses. Multivariate logistic regression analysis showed myopia development was significantly associated with older age (OR = 1.36, P = 0.008), better academic ranking in class in the preceding semester (OR = 1.01, P = 0.02) and absence of routine eye check (OR = 2.70, P = 0.001).
Conclusion:
The prevalence of myopia in primary school students in Hong Kong is high. There is a low level of awareness of refractive errors among parents, and high proportion of under-correction, resulting in suboptimal vision. |
Persistent Identifier | http://hdl.handle.net/10722/285428 |
ISSN | 2023 Impact Factor: 2.1 2023 SCImago Journal Rankings: 0.907 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Choy, BNK | - |
dc.contributor.author | You, Q | - |
dc.contributor.author | Zhu, MM | - |
dc.contributor.author | Lai, JSM | - |
dc.contributor.author | Ng, ALK | - |
dc.contributor.author | Wong, IYH | - |
dc.date.accessioned | 2020-08-18T03:53:19Z | - |
dc.date.available | 2020-08-18T03:53:19Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Japanese Journal of Ophthalmology, 2020, v. 64 n. 4, p. 437-449 | - |
dc.identifier.issn | 0021-5155 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285428 | - |
dc.description.abstract | Purpose: To examine the prevalence of myopia in primary school children in Hong Kong, and the risk factors for myopia development. Study design: A cross-sectional study. Methods: Subjective refraction and axial length were measured in all participants. Structured questionnaire was completed by the parents to assess risk factors of myopia. Results: A total of 1396 children (491 boys) from Grade 1 to Grade 6 from 4 primary schools in Sham Shui Po district of Hong Kong participated. All participants underwent non-cycloplegic refraction. The overall prevalence of myopia (spherical equivalent, SE ≤ -0.5 diopter [D]) was 37.7%, which significantly increased with age, from 13.3% at grade 1 to 54.7% at grade 6. The prevalence of moderate myopia (-3.0D < SE < -6.0D) increased from 1.6% at grade 1 to 18.2% at grade 6 and the prevalence of high myopia (SE < = -6.0 D and/or AL ≥ 26.5 mm) increased from 0.94% (7/747) in grade 1-3 students to 1.85% (12/649) in grade 4-6 students. Among the students with myopia, only 23.6% of the parents knew their children had refractive errors and only 19.8% of the children wore glasses. Multivariate logistic regression analysis showed myopia development was significantly associated with older age (OR = 1.36, P = 0.008), better academic ranking in class in the preceding semester (OR = 1.01, P = 0.02) and absence of routine eye check (OR = 2.70, P = 0.001). Conclusion: The prevalence of myopia in primary school students in Hong Kong is high. There is a low level of awareness of refractive errors among parents, and high proportion of under-correction, resulting in suboptimal vision. | - |
dc.language | eng | - |
dc.publisher | Springer Japan. The Journal's web site is located at http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-10074-70-18952714-0,00.html | - |
dc.relation.ispartof | Japanese Journal of Ophthalmology | - |
dc.subject | Refractive error | - |
dc.subject | Myopia | - |
dc.subject | Hyperopia | - |
dc.subject | Paediatric ophthalmology | - |
dc.title | Prevalence and associations of myopia in Hong Kong primary school students | - |
dc.type | Article | - |
dc.identifier.email | Choy, BNK: bnkchoy@hku.hk | - |
dc.identifier.email | Zhu, MM: zhumm@hku.hk | - |
dc.identifier.email | Lai, JSM: laism@hku.hk | - |
dc.identifier.email | Wong, IYH: wongyhi@hku.hk | - |
dc.identifier.authority | Choy, BNK=rp01795 | - |
dc.identifier.authority | Lai, JSM=rp00295 | - |
dc.identifier.authority | Ng, ALK=rp01842 | - |
dc.identifier.authority | Wong, IYH=rp01467 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1007/s10384-020-00733-4 | - |
dc.identifier.pmid | 32180049 | - |
dc.identifier.scopus | eid_2-s2.0-85081749377 | - |
dc.identifier.hkuros | 312652 | - |
dc.identifier.volume | 64 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 437 | - |
dc.identifier.epage | 449 | - |
dc.identifier.isi | WOS:000520695700001 | - |
dc.publisher.place | Japan | - |
dc.identifier.issnl | 0021-5155 | - |