| 摘要 |
PROBLEM TO BE SOLVED: To efficiently and easily execute eyesight lowering prevention or eyestrain recovery training in a short time. SOLUTION: A start control means 26 starts eyesight training processing, and graphic groups moving within the speed to be able to be followed up by eyes are displayed as moving images on an image display 10 by a move display means 21 for graphic groups. The graphic groups are repeatedly distributed and collected within the speed to be able to be followed up by eyes by a distributed/collected display means 22 for graphic groups. Further, the background of graphic groups is alternately switched between low-luminance background and high-luminance background within the speed, with which the opening/closing of iris can be controlled by a background color switching means 24, and the display color of graphic group is changed within the range so as to be visually distinguished from the background color by a display color change means 23 for graphic groups. By paying attention upon the graphic groups on this display screen, flexibility recovery for the iris, outer eye muscle and ciliary body as three muscles of eye is attained in a short time. |
