Ginkgold add vision to my eyes?

my eye  is which i like the most and i am not bieng really proud of it if i say it as i have been complimented from so many people including my boyfriend,who is in love with my eye.but from afew days i have noticed that i cant see that clearly and whenever i have to pick a blue t shirt ,i pick up a green one instead.And then it is later when i realize the mistake that i have made .so then my uncle  who is again a fan of  my eye told my mother about Ginkgold . so does this Ginkgold improve the eye vision and in what fashion does it do so?and how much of Ginkgold do i need to take in order to restore my vision back ?