Frequency 55
CooperVision
ManufacturerCooperVision
Brand familyFrequency
CategoryMonthly
Material (USAN)methafilcon A
Material classHydrogel
FDA groupIV
Dk (material)20 ×10⁻¹¹
Dk/t (@ -3.00 D)19.7 ×10⁻⁹
Water content55%
Base curve(s)8.6, 8.9 mm
Diameter(s)14.4 mm
Sphere power+6.00 to -10.00
Replacement1 month
Wear scheduledaily wear
UV blockingno
Pack sizes6
AvailabilityLegacy lens; also sold as Encore and various private labels.
Verify parameters against current manufacturer documentation before fitting.