| Long-term Changes in the Spherical Equivalent and Axial Length in Bilateral High-hyperopia Children. |
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Sue Hey Chae, Sun A Kim |
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Sungmo Eye Hospital, Busan, Korea. sunei2@naver.com |
| 두눈 고도원시 환아에서 연령에 따른 안축장과 원시 정도의 장기간의 변화 관찰 |
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채수혜⋅김선아 |
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성모안과병원 |
Correspondence:
Sun A Kim,
Email: sunei2@naver.com
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Received: 23 November 2017 • Revised: 4 January 2018 • Accepted: 2 April 2018 |
| Abstract |
PURPOSE
To explore changes in the spherical equivalent refractive error and axial length of both eyes of children with high hyperopia over time. METHODS: Children with bilateral hyperopia ≥ 4.0 diopters (D) underwent visual acuity testing and comprehensive ophthalmic examinations. The mean age at the first visit was 6.5 years and spherical equivalent refractive error and axial length were measured at least three times over the following year. Axial length was measured using an intraocular lens Master instrument (Carl Zeiss Meditec, Jena, Germany). RESULTS: The mean annual increase in axial length was +0.21 mm and the mean annual reduction in spherical equivalent refractive error was −0.39 D. Between the ages of 3 and 5 years, the mean annual increase in axial length was +0.36 ± 0.26 mm. In patients aged ≥ 9 years old, the mean annual increase was +0.12 ± 0.09 mm (p = 0.00). The mean annual reduction in spherical equivalent refractive error was −0.53 ± 1.00 D between the ages of 3 and 5 years, but became −.32 ± 0.54 D at age ≥ 9 years old. This difference was not significant (p = 0.11). CONCLUSIONS: In children with bilateral hyperopia, the spherical equivalent refractive error decreased and the axial length increased with age. The rate of axial length growth was higher in younger children. |
| Key Words:
Ambylopia;Axial length growth rate;Hyperopia;Intraocular lens (IOL) Master;Refractive error |
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