Relationship between higher-order aberrations and myopia progression in schoolchildren: a retrospective study
AIM: To investigate the relationship between higher- order aberration (HOA) and myopic progression in schoolchildren. ·METHODS: Between April 23 2011 and August 29, 2011 in the children’s myopia outpatient clinic of the West China Hospital of Sichuan University, 148 eyes of 74 schoolchildren were re...
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Published in | International journal of ophthalmology Vol. 6; no. 3; pp. 295 - 299 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
China
International Journal of Ophthalmology Press
2013
Press of International Journal of Ophthalmology (IJO PRESS) |
Subjects | |
Online Access | Get full text |
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Summary: | AIM: To investigate the relationship between higher- order aberration (HOA) and myopic progression in schoolchildren. ·METHODS: Between April 23 2011 and August 29, 2011 in the children’s myopia outpatient clinic of the West China Hospital of Sichuan University, 148 eyes of 74 schoolchildren were reviewed. HOAs for a 6 -mm pupil were measured with an aberrometer. Myopic progression rate was defined according to the change in spherical equivalent refraction (SER) divided by the time span (years). Subjects with myopic progression rate of ≥0.50 diopters (D) were classified as the ’fast’group and the subjects with myopic progression rate of <0.50D were classified as the’slow’group. A retrospective study was conducted to compare HOA between the two groups, using root mean square (RMS) values and Zernike coefficients. ·RESULTS: The RMS values of HOA (t =2.316, P =0.02), HOA without Z 4 0 (t =2.224, P =0.03),third-order aberrations (t’ =2.62, P =0.01), and coma (t’ =2.49, P =0.01) were significantly higher in the fast group than those in the slow group. The individual Zernike coefficients of Z 3 -1 (t = -2.072, P =0.04) and Z 5 1 (Z =-2.627, P =0.01) displayed statistically significant differences between the two groups. Significant correlations were found between the RMS values of HOA (r =0.193, P =0.019), RMS values of HOA without Z 4 0 (r =0.23, P =0.005), RMS values of coma(r =0.235,P =0.004),RMS values of third-order aberrations (r =0.243, P =0.003), and the progression rate. · CONCLUSION: Our results provide evidence of a relationship between HOA and myopic progression. In a future prospective longitudinal study, we aim to verify whether HOA is a risk factor for myopic progression. |
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Bibliography: | Ning Zhang, Xu-Bo Yang, Wen-Qiu Zhang, Long-Qian Liu, Guang-Jing Dong, Tao-Wen Chen, Meng Liao, Xuan Liao Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Co-first authors: Ning Zhang, Xu-Bo Yang |
ISSN: | 2222-3959 2227-4898 |
DOI: | 10.3980/j.issn.2222-3959.2013.03.07 |