I have a slight yellowing on the inner part of the white of my eyes... but no other symptoms. i play video games a lot. are they related?

Could be.... : These are called pinguecula and are caused by dryness, irritation and uv light exposure.

Pinguecula: Pingueculae are yellow growths that occur most commonly on the nasal aspect over the whites of the eyes. They first occur because of sun damage. They become more noticeable with eye irritation, as can happen with the dryness associated with staring at a video screen when playing games or reading. Of course, a good high res photo would be very helpful to the panel of doctors.

Unrelated: You have noticed your pingueculum, a normal structure which is of no harm and which your eye makes for normal protection.