My optometrist suggested me to change them for high-index lenses as my “coke-bottle” lenses are really ugly, I have a really strong prescription since many years ago, but the problem is that these lenses are always very expensive, I don’t want to waste money on fake ones, as you know that nowadays there are many sharp-shooters on site, so I have no idea where can I buy quality ones, so, who can give me a piece of advice?