For about a week now I am emitting pre cum almost everytime I pee (multiple times a day) eventhough I haven't masturbated for weeks. I am 19. Not sure if this is relevant but I went through a laser eye operation for a retinal tear and this tarted happening around that time.
So, it's probably not semen but a bit of mucus from your prostate. You possibly have a little inflammation there. But a little mucus is usually no reason for concern. Looks like semen, it's not. And no, eye surgery would not affect this.