The yellow spots are caused from tiny blood vessels that have ruptured (a bruise) The blood is starting to break down and is being resorbed by the body. So it's like a bruise where at first it is blue, then green, then yellow then back to normal only because the vessels of the eye are so superficial it would be red then yellow.
If the entire white of the eye (called the sclera) is yellow then you're in big trouble. This is called icterus or jaundice and it means that 70% of your liver is kind of toast!
Now if the yellow or brown spots are in the iris, this indicates toxins in specific parts of the body (some call them drug spots). An entire science has evolved around this called Iridology. Fascinating stuff. I use these signs to give me an idea of what organs may be involved in disease processes when I examine my animal and human patients.
Nothing. It's fairly hard to avoid showing the whites of your eyes.
Its mean yellow
liver porblem
your chameleon is getting its colors the yellow is normal and the blue spots if it is a girl could mean she is ready to mate and that she is willing to .
Jaundice
There are many skin condition causes white spots like vitiligo, Albinism, Nevus depigmentosus, Pityriasis Alba, White scars and hypopigmentation and Idiopathic guttate hypomelanosis
Mucus can sometimes be yellow or if you have a virus it can be yellow with blood spots in it( this could just mean your throat is irritated)
I am assuming you mean "how does a lack of sleep effect your eyes?" Low levels of sleep will cause redness in the whites of the eyes and will cause you to get dark circles under the eyes.
maybe you got eaten by darkness
It's caused by a harmless chemical forming in them. They are perfectly safe to eat.
See a doctor. Having yellow skincolor or yellowish eyes means that you are jaundiced and could mean that you have hepatitis, and can be deadly.
If you mean you see black spots in front of your eyes, call 911. if you don't mean that, what do you mean?