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White light emitting diode (LED) determined the most appropriate color temperature in reading lighting evaluated fatigue degree of eye according to color temperature. The eye fatigue degrees are determined by brightness and color temperature. Therefore, we measured the results of eyes test according to the change of color temperature and brightness. Experiments except for astigmatic corrected visual acuity of 0.8 more and age 20 to 25 years old, male and female college students was conducted in 100 patients. And constant illumination conditions, visual acuity was measured by varying the color temperature. The optometry at 10 minutes in the darkroom adapted eye. And then the temperature of degrees, the humidity was carried out at . As a result of typical color temperature of white light (5,600 K) has identification of the readability.

Research a Person's Eyesight Changes on According to the Optimum Color Temperature for the Stand Lamp Using White Light LED Sources