forehead veins on my temples

I see that this is a 1 year plus topic, but I want to add I got the same thing. 51 year male. I havent really noticed them until a few years ago. They start somewhere on he top front of the scull, and advance in a bulging manner rear and towards the ears, where they dissappear right under the area where the glasses temples(?) squeeze. I really wonder if this is the culprit. Worth considering if wearing any kind of glasses on a daily routine. I also notice when the nosepads squeeze the skin on the nose bridge, the large center vein on the forehead becomes visible, and dissappears again when lifting the pads off.