Monthly contact lenses toric lenses series bausch lomb purevision quantity 6 pieces type of lens soft lenses manufacturer specific features bausch lomb comfortmoist technology material balafilcon a diopters 050 wearing time 1 month diameter 145 mm base curve 89 mgliche zylinder 0 75 1 25 1 75 2 25 mgliche achsen 10 180 oxygen permeability dk 102 water content 36 geeignet fr astigmatism