PURPOSE: To alleviate fatigue of the operator of a computer by forming a colored part on the upper part of each glass of spectacles nearly from the middle part and preventing the border line between the colored part and the transparent part or making it unnoticeable or gradually diluting the color from the upper part to the lower part.

CONSTITUTION: The upper part of each glass 2 of spectacles is colored and the rest is kept transparent, and CRT displays are watched through the colored parts 3. As a result, bright lights and X-rays emitted from the CRT displays do not directly attack the eyes of an operator, and when a key board 5 and input and output sheets are watched, since the light can be transmitted through the transparent part 4, always almost constant light not intercepted is cast on the eyes, and even after long time operation of the computer, fatigue of the eyes scarcely occur and the eyes can be protected.