Iribarren R, Fornaciari A, Hung G K
Department of Ophthalmology, Centro Médico San Luis, San Martín de Tours 2980, (1425) Capital Federal, Argentina.
Int Ophthalmol. 2001;24(4):205-12. doi: 10.1023/a:1022521228541.
To investigate quantitatively in young adults the relationship between long-term cumulative nearwork, degradation of dynamic accommodative ability and the presence of asthenopic symptoms.
Subjects consisted of 87 young students and office workers between 18 and 31 years of age with uncorrected visual acuity of 20/30 or better in each eye. The amounts of nearwork, dynamic accommodative facility, and level of asthenopic symptoms were measured for each subject.
Total cumulative nearwork time was negatively correlated with accommodative facility and positively correlated with the number of asthenopic symptoms. Furthermore, significant correlations were found between total nearwork time and blurred vision, and blurred vision and reduced accommodative facility. Moreover, the sub-category of "hours spent reading over the years" was found to be significantly correlated with decreased accommodative facility.
The correlations suggest a relationship between cumulative amount of nearwork, decreased accommodative facility and asthenopia.
定量研究年轻成年人长期累积近距工作、动态调节能力下降与视疲劳症状之间的关系。
研究对象为87名年龄在18至31岁之间的年轻学生和办公室职员，每只眼睛的裸眼视力均为20/30或更好。测量了每位受试者的近距工作时长、动态调节能力和视疲劳症状程度。
总的累积近距工作时间与调节能力呈负相关，与视疲劳症状数量呈正相关。此外，总的近距工作时间与视力模糊之间、视力模糊与调节能力下降之间均存在显著相关性。而且，“多年来阅读时长”这一亚类与调节能力下降显著相关。
这些相关性表明近距工作累积量、调节能力下降与视疲劳之间存在关联。
