Marzec S
Klin Oczna. 1989 Feb-Mar;91(2-3):47-8.
The author examined the frequency of blinking and the position of the near point influenced by practicing a work of considerable visual requirements in various conditions of illumination. It was established that a 7-hours work causes an increase in the frequency of blinking in all the examined persons and receding of the near point in 93 p.c. of subjects. Calculated was the coefficient of correlation and the tangent of the inclination angle of the extent of changes of the measured functions from the logarithm of intensity of the illumination on the work stand. The received coefficients of correlation were -0.08 in case of changes of the near point and -0.63 for the changes of blinking frequency; instead the tangent of inclination angle respectively -0.41 and -122.
作者研究了在不同光照条件下从事视觉要求较高的工作时眨眼频率和近点位置的变化。结果表明，7小时的工作会使所有受测者的眨眼频率增加，93%的受测者近点后移。计算了测量函数变化程度与工作台上光照强度对数之间的相关系数和倾斜角正切值。近点变化时得到的相关系数为-0.08，眨眼频率变化时为-0.63；而倾斜角正切值分别为-0.41和-122。
