I have -4.5 sp -1.5 cyl and almost similar power in the other eye. What type of lens is best suited? I heard from someone that lenses can be customised and made thinner even with this power. It helps in a sharper vision and stables the power. After -5 or -6, the power increases rapidly. So thin lens- blue cut are suggested. But some people said, all blue cut lens are same and come with thin variety as well. I am confused if these facts about stabilizing power with thin lens is correct or not. Please share some information about the lens to be used and what us the matter with thick and thin lens.