Good quality photochromic optical Lenses in quite good quality, the lenses put in the sunshine, they will change to grey or brown color..
The SPH(-) from -0.5 to -6.00. only for myopia( short sight)
The SPH(+) from +0.5 to +6.00, for reading glasses presbyopic (far sight)
The CYL from -0.50 to -2.00.
We can provide a good solution for your prescription glasses , just add one pair glasses frames and 1 pair lenses in our store.