I've been abusing alot of cocaine for about a year recently took a 4 month brake due to chest pains and did some today and my peripheral vision is messed up. Im seeing colors and lights in the corner of my eye mainly the right. It's like when you look into a bright light and look away or when you rub your eyes really hard but in the corner of my eye. Does this seem serious to anybody, obviously gonna stop doing cocaine. I'm also experiencing some vasoconstriction in my hands and random parts of my body that come and go. Not really sure if this is signs of anything I need medical attention for? I appreciate the help and ya I'm not going to do coke anymore.