Well, Iris mini can change the brightness without decreasing the flicker frequency which is really cool.

This is the reason you feel eye pain, headaches and other problems from the PC. The problem is that most monitor makers control the brightness with decreasing this flicker rate (the so-called Pulse Width Modulation).Īnd the lower the frequency the worse for our eyes. There is no way to make monitor without this flicker and this is not the actual problem.

This flicker is usually at a really high frequency and we don’t detect it. When your monitor is working it flickers all the time. The other cool thing is about the brightness. This is like other softwares f.lux, Night Shift and other blue light blocking softwares. What Iris mini does at night is that based on your location it makes your screen a little more yellow or red depending on the value of the color temperature. At night the blue light stops the secretion of melatonin, the hormone responsible for our sleep. Think of color temperature like decreasing the blue light emitted from the screen.

It can reduce the color temperature of the screen and it can also reduce the screen brightness without increasing the flicker rate of the monitor (the so-called PWM problem). Iris mini is software for eye protection. This is the entire Iris mini, no UI, no buttons, no many confusing options. Iris mini is free and minimalistic version of Iris. For Mac 10.6.8 Snow Leopard use this version

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