tarrkin:Dark Side users who don’t (always) display the yellow Dark Side eyesThe change in eye color
tarrkin:Dark Side users who don’t (always) display the yellow Dark Side eyesThe change in eye color was a result of the user’s immersion within the Dark Side, as the deeper one immersed themselves within its power the more it caused physical degredation to the body. The phenomenon correlates with the intensity immersed within the Dark Side, not the amount of time spent within it. -- source link