What is the best method to hang on to eyes white and bright?

Why do eyes turn yellow near age? Is there a opening to prevent this? What about glow?What is the best method to hang on to eyes white and bright?
Don't smoke, eat plenty of antioxidant rich foods approaching berries and leafy greens, and stay away from alcohol. Be aware of foods that you may be sensitive too, like wheat or dairy, some food allergies can contribute to red or yellowish eyes. Hope this help! Oh, and always drink plenty of wet!
I don't think eyes are supposed to turn sickly with age. If you've get yellow eyes you probably enjoy a liber problem and should go to a doctor.
Don't do drugs.
Here is a website adjectives about eyes...it might own something interesting ..http://www.kidshealth.org/kid/body/eye_n...
Sleep 8 hrs every day. Cover eyes next to warm hand for several minutes.