Monthly contact lenses toric lenses series cooper vision biofinity quantity 6 pieces type of lens soft lenses manufacturer specific features cooper vision aquaform technology material comfilcon a diopters 650 wearing time 1 month diameter 145 mm base curve 87 mgliche zylinder 0 75 1 25 1 75 2 25 mgliche achsen 10 180 oxygen permeability dkt 116 water content 48 geeignet fr astigmatism dry eyes