| 摘要 |
PCT No. PCT/JP85/00002 Sec. 371 Date Jun. 19, 1986 Sec. 102(e) Date Jun. 19, 1986 PCT Filed Jan. 4, 1985 PCT Pub. No. WO85/03140 PCT Pub. Date Jul. 18, 1985.The effect of the glasses of this invention is estimated and is summarized as follows: (1) The effect of reducing the consciousness of eye fatigue is seen. (2) There is a tendency that the mental subjective symptoms are reduced. (3) Because the sense of fatigue is reduced, concentration becomes easier and it is presumed that it is helpful in preventing irritation and weariness. Since fatigue differs depending on the length of working time, it seems to be necessary to take into consideration the effect due to other fatigue than eye fatigue and the effect of motivation. It seems also necessary to investigate under different conditions the latent fatigue which has not been covered in this report. |
