CareUEyes can effectively filter out the continuous blue light emitted by the display, but blue light is a type of light with short wavelength, high energy, and easy flickering, which can cause eye fatigue. CareUEyes is a blue light filter for PCs, which filters blue light by adjusting the color temperature. The lower the color temperature, the less blue light the screen emits. Using CareUEyes to reduce blue light can reduce vision problems.