Goldschmidt Ernst, Lyhne Niels, Lam Carly S Y
Danish Institute for Myopia Research, Department of Ophthalmology, Hilleroed Hospital, Hilleroed, Denmark.
Acta Ophthalmol Scand. 2004 Apr;82(2):175-8. doi: 10.1111/j.1600-0420.2004.00230.x.
To study the difference in refraction between right and left eyes (anisometropia) in different age groups, look for evidence of eye laterality (more refractive error in one eye) and compare the size of anisometropia in the myopic and emmetropic ranges.
The study was based on children in Hong Kong (examined at the age of 6 years and again at the age of 8.5 years) and their parents (aged 26-60 years).
In all age groups the difference between right and left eyes in sphere and cylinder was modest, in most cases < or = 0.25 D. In both children and their parents a tendency towards spherical right eye laterality was found in the myopic individuals (p < 0.05). This was not the case with the cylinder. In the 8.5-year-old children and in their parents, the numerical size of spherical anisometropia increased with myopia (p < 0.05 and p < 0.01, respectively). Cylindrical anisometropia did not exhibit such an increase.
In Hong Kong children and their parents we found a tendency towards more spherical myopia in right eyes (laterality) in myopic cases. The numerical size of spherical anisometropia also increased in myopia in these groups. Cylindrical anisometropia appeared to be independent of spherical ametropia. In most cases right/left differences in both sphere and cylinder were small and our findings justify the use of data from one eye only in publications on refraction.
研究不同年龄组左右眼屈光不正（屈光参差）的差异，寻找眼优势侧（一只眼屈光不正程度更高）的证据，并比较近视和正视范围内屈光参差的大小。
该研究以香港儿童（6岁时接受检查，8.5岁时再次检查）及其父母（年龄在26 - 60岁之间）为对象。
在所有年龄组中，球镜和柱镜度数的左右眼差异均较小，大多数情况下≤0.25D。在儿童及其父母中，近视个体均存在右眼球镜优势侧的倾向（p < 0.05）。柱镜度数情况并非如此。在8.5岁儿童及其父母中，球镜性屈光参差的数值大小随近视程度增加（分别为p < 0.05和p < 0.01）。柱镜性屈光参差未呈现这种增加趋势。
在香港儿童及其父母中，我们发现在近视病例中右眼存在球镜性近视程度更高（优势侧）的倾向。这些组中球镜性屈光参差的数值大小也随近视程度增加。柱镜性屈光参差似乎与球镜性屈光不正无关。在大多数情况下，球镜和柱镜度数的左右眼差异均较小，我们的研究结果支持在屈光相关出版物中仅使用一只眼的数据。
