Cooper Clear DW contact lenses from CooperVision are spherical lenses designed to be worn as daily wear contacts, removed and cleaned nightly. These lenses are manufactured to last up to a year.
The lens material, tetrafilcon A, is a hydrophilic random terpolymer of 2-hydroxyethyl methacrylate, N-vinyl-2-pyrrolidone and methylmethacrylate joined in a three dimensional network of terpolymer chains by divinylbenzene cross links.
|Base Curve:||8.3, 8.6 and 8.7 mm|
|Diameter:||14.0 and 14.4 mm|
|Power Range:||+6.00 to -6.50 (0.25 steps)|
|-6.50 to -10.00 (0.50 steps)|
|Center Thickness:||0.03 to 0.28mm (varies with power)|
|Oxygen Permeability:||9.3 x 10-11 (cm2/sec) (ml 02/ml x mmHg) at 35 deg. C|