Eyeglasses lenses can easily go corrupted at moistrue and alkalic circumstance, so what kind of frame material is the best choice for using at such conditions? Can I order those titanium frameless styles, Polycarbonate lenses would seem to be the way to go, and they should be progressive/multi-focal lenses. I need to combine distance vision, laptop screen distance and reading. I am not interested in designer, fashion etc. what kind of eyeglasses should I choose?