Full
Outline
To analyze the distribution and related factors of spherical equivalent(SE) anisometropia in school-aged children in ethnic minority areas of Yunnan Province, so as to provide a scientific basis for the intervention and control of SE anisometropia.
In October 2021, a total of 1 852 school-aged children in three counties/cities(Lijiang City, Dali City, Xishuangbanna) in Yunnan Province were examined by multi-stage cluster random sampling method for computer optometry visual acuity examination for non-ciliary paralysis and questionnaire survey.Demographic characteristics, ocular biological parameters and SE data were obtained for SE anisometropia. Group comparisons were conducted using Mann-Whitney U test or Kruskal-Wallis H test, and Logistic regression was used to explore the related factors of anisometropia in SE.
The prevalence of SE anisometropia among school-age children was 23.0%, and the prevalence was higher in girls (24.2%) than that in boys (21.6%). Compared with non-anisometropic children, school-aged children with SE anisometropia had longer axial length (AL) [24.03 (23.41, 24.76), 23.93 (23.26, 24.61) mm] and corneal curvature radius (CR) [43.42 (42.43, 44.42), 43.14 (42.23, 44.04)mm], SE[-1.75(-2.75, -1.00), -0.94(-2.63, -0.25)D], smaller spherical scope [-1.38(-2.38, -0.75), -0.75(-2.38, 0)D], deeper anterior chamber depth(ACD)[3.77(3.62, 3.93), 3.72(3.55, 3.89)mm], and grater differences in AL[0.58(0.32, 0.82), 0.13(0.06, 0.22)mm], ACD[0.05(0.02, 0.08), 0.03(0.01, 0.06)mm] and AL/CR[0.01(0.01, 0.02), 0.01(0.00, 0.01)](Z=-22.47 to -2.41, all P < 0.05). The results of Logistic regression showed that mild myopia(OR=2.74), moderate myopia(OR=3.52), and high myopia(OR=8.92) had a relatively high risk of anisometropia SE in school-aged children(all P < 0.05).
The prevalence of SE anisometropia in school-aged children in ethnic minority areas of Yunnan Province is relatively high, and the prevalence and degree of anisometropia were closely related to myopia degree and related refractive parameters.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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