When I first played EQ my human rogue was basically blind at night. For years on live we have had ultravision hidden in Faerune on basically every head item... Later I played a human on Phinegel server and my light source appeared to do nothing, and from time to time I bugged out into an almost foggy, paler version of the world form a vision/appearance perspective. So while I haven't logged into a human character to see if it is different for me, it is possible that human vision function is just back to, or closer to what it actually was designed as?
When I was having the issue (assuming this quote applies to my earlier comment) on my human character the in game gamma adjustment was doing nothing. Sometimes logging out would eliminate the "foggy" paleness.
