If someone has a tinge of yellow in their eyes wot does it mean the person I know of is prone to being a heavy drinker would this contribute to the discolouration
Gall bladder or Bile Duct obstructions can cause jaundice, and it usually means a fairly urgent operation. The eyes are usually the first place to show yellowness, soon followed by the skin.
When I was rushed into hospital some time back, it wasn't until after I'd passed a kidney stone, then eventually safely back home, that my daughters & husband told me the whites of my eyes & my skin colour had been yellow at the time.
My eyes have a yellow tinge to them on occasion, this is due to a condition called cholestasis which I got during pregnancy. It should fix itself after giving birth but in my case it hasn't yet.