CooperVision’s Frequency 55 contact lenses give you crisp, irritant free vision. Frequency 55 disposable contacts are replaced with new lenses after a month of use, avoiding the buildup of pollutants that can irritate your eyesight and cloud your vision. Your Frequency 55 lenses will be easy to find in the cleaning solution because of the light tint that the lenses are infused with.
The lens material methafilcon A , is a random copolymer of hyroxyethylmethacrylate and methacrylic acid. The lenses are tinted edge to edge for visibility purposes with the color additive, Reactive Blue No. 4.
|Diameter:||14.2mm to 15.0mm|
|Base Curve:||8.0mm to 9.5mm|
|Center Thickness:||0.15mm to 0.60mm (varies with power)|
|Powers:||-20.00 to +20.00D|
|Oxygen Permeability:||19.7 x 10-11 (cm2/sec) (ml 02/ml x mmHg) at 35 degrees C (Fatt method for determination of oxygen permeability)|