When you make your electrolyte drink, make sure that you're using a container that you like to travel with. If you like your container it will increase the chances that you will indulge in your drink concoction more often. The Lip Twister - tart and sweet. 1  1/4 cup of lemon juice. 2  1/4 cup of lime juice.  1 teaspoon of salt.
Other Causes Eye Color Change. If your eyes check out fine, then the cause of the color change is probably due to age. Aging is the most common cause of a change in eye color, gradually, after reaching adolescence. Most will lighten with age, but hazel (light brown or yellowish brown) or blue can darken.
Some eye drops can make the iris color darker. There are conditions that can make one eye become lighter due to inflammation or pigment loss. Conditions that will cause both eyes to become lighter would include conditions of the cornea that might give the appearance of lighter eyes but this would very unusual without other symptoms. It is also possible that this is a condition that is glaucoma related called pigment dispersion where the irises lose pigment. However, I would guess that this is likely to not be anything serious. However, you certainly should see an Eye M.D. to be sure.