What is the best choice for glass lense ?

Question

I'm going to have my eye re-exam tomorrow and buy new glass

the one i had now is just regular lenses and I don't really like it

I wonder what is the best lenses to buy or what kind of coating should i get

Answer 1

Ask for CR-39 lenses. They're the best investment you can make in terms of lightness, clarity, and most importantly, long lastingness! They're extremely scratch and heat resistant.