No none at all to improve it. Different tinted lens may make
colorColor blindness
Color blindness tests
Color vision test contrast easier to see. Certain examples
yellowYellow fever vaccine
Yellow nail syndrome lens brighten things and are used in fog lights, ski glasses for overcast days. Skeet and trap shooters use different
colorColor blindness
Color blindness tests
Color vision test lens to improve contrast often such
colorsColor blindness
Color blindness tests
Color vision test as vermillion. Sunglasses that are grey or green change color perception less that other colors. And of course there is always the rose/pink tints that many people think softens vision and cheers them up "looking at life through rose colored glasses". None of these things will make the eye healthier or make a color deficient eye less color deficient.
JCH III MD