Beijin Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing Institute of Ophthalmology, Capital Medical University, Beijing, China.
Handan Eye Hospital, Hebei Province, China.
Clin Exp Ophthalmol. 2018 Nov;46(8):873-881. doi: 10.1111/ceo.13196. Epub 2018 Apr 17.
Provision of refractive changes is important to predict eye care needs for aging population.
To provide 5-year refractive changes in a rural Chinese adult population.
Population-based longitudinal study.
At baseline, 6830 subjects aged 30+ years took part in the Handan Eye Study. A total of 5394 of the 6323 survivors (85.3%) participated in the 5-year follow-up.
Ocular examinations including standardized refraction were performed according to the same protocol at both baseline and follow-up.
Change in spherical equivalent (SE; sphere + 1/2 cylinder) and astigmatism.
A total of 3970 right eyes were available for refraction analysis. The 5-year change in SE for all subjects was +0.17 diopters (D), and was -0.21D, +0.14D, +0.40D and +0.08D for subjects aged 30-39, 40-49, 50-59, and 60-69 years, respectively. By binary regression analysis, myopic shift was associated with severe nuclear opacity, longer axil length, diabetes and large change of lens power, while hyperopic shift was associated with older age and ocular hypertension at baseline. There was a mean change of 0.18D in the against-the-rule astigmatism.
There was a myopic shift for those 30-39 years old and a hyperopic shift from 40 to 69 years old in a rural Chinese adult population. Those with severe nuclear opacity, longer axil length, diabetes and large change of lens power tended to have a myopic shift, while those being older and having ocular hypertension at baseline were prone to have a hyperopic shift. There was also an increase in against-the-rule astigmatism in this population.
提供屈光度变化对于预测老龄化人口的眼保健需求很重要。
提供中国农村成年人的 5 年屈光度变化。
基于人群的纵向研究。
在基线时，6830 名 30 岁以上的受试者参加了邯郸眼病研究。在 6323 名幸存者中，共有 5394 名（85.3%）参加了 5 年随访。
根据相同的方案，在基线和随访时均进行眼部检查，包括标准化验光。
等效球镜（SE；球镜+1/2 柱镜）和散光的变化。
共获得 3970 只右眼进行屈光分析。所有受试者的 SE 在 5 年内变化为+0.17 屈光度（D），30-39 岁、40-49 岁、50-59 岁和 60-69 岁的受试者分别为-0.21D、+0.14D、+0.40D 和+0.08D。通过二项回归分析，近视漂移与核混浊严重、眼轴较长、糖尿病和晶状体屈光力变化较大有关，而远视漂移与基线时年龄较大和眼压升高有关。逆规散光的平均变化为 0.18D。
在农村中国成年人中，30-39 岁的人群出现近视漂移，40-69 岁的人群出现远视漂移。核混浊严重、眼轴较长、糖尿病和晶状体屈光力变化较大的人群易发生近视漂移，而基线时年龄较大和眼压升高的人群易发生远视漂移。该人群的逆规散光也有所增加。
