RGP Polymers Physical Properties
UV and other locator tints are available for our international partners within respective regional compliance guidelines. Please contact us for more information.
Physical Properties
OPERM HDKTM
Fluoro-silicone acrylate
Refractive Index
1.423
Oxygen Permeability DK@35°C (X10 -11)
153
Wetting Angle (Captive Bubble)
<50°
Specific Gravity
1.15
Hardness (Shore D)
78
Water Absorption%
.40
Tints Available
Blue, Green along with other Locator Tints
UV Absorber
An Available Option
OPERMTM F60
Fluoro-silicone acrylate
Refractive Index
1.451
Oxygen Permeability DK@35°C (X10 -11)
62
Wetting Angle (Captive Bubble)
<40°
Specific Gravity
1.131
Hardness (Shore D)
81
Water Absorption%
.60
Tints Available
Clear and Blue
UV Absorber
An Available Option
OPERMTM F40
Fluoro-silicone acrylate
Refractive Index
1.463
Oxygen Permeability DK@35°C (X10 -11)
38
Wetting Angle (Captive Bubble)
<37°
Specific Gravity
1.120
Hardness (Shore D)
81
Water Absorption%
.70
Tints Available
Blue, Clear Green, Gray
UV Absorber
An Available Option
OPERMTM 30
Silicone-acrylate
Refractive Index
1.472
Oxygen Permeability DK@35°C (X10 -11)
31
Wetting Angle (Captive Bubble)
<29°
Specific Gravity
1.086
Hardness (Shore D)
83
Water Absorption%
<1.0
Tints Available
Blue, Clear Green, Gray
UV Absorber
An Available Option
OPERMTM 15
Silicone-acrylate
Refractive Index
1.473
Oxygen Permeability DK@35°C (X10 -11)
11
Wetting Angle (Captive Bubble)
<25°
Specific Gravity
1.111
Hardness (Shore D)
84
Water Absorption%
<1.0
Tints Available
Blue, Clear Green, Gray
UV Absorber
An Available Option
OPERMTM PMMA
Polymethyl methacrylate
Refractive Index
1.473
Oxygen Permeability DK@35°C (X10 -11)
<0.02
Wetting Angle (Captive Bubble)
<25°
Specific Gravity
1.19
Hardness (Shore D)
93
Water Absorption%
---
Tints Available
Clear, Blue, Green, Gray, Brown along with other Locator Tints
UV Absorber
An Available Option
Hydrogel Polymers Physical Properties
AQUA->PERMTM soft lens polymers are cast from pure 2-hydroxyethylmethacrylate (HEMA) as stress free blanks. They are cast in either flat bottom or rough base curve configurations. A blue locator tint is available. Blanks are packaged anhydrous (dry) in 100 to 200 per pack (as appropriate) in a vapor proof foil envelope. A formulation to make your own 0.9% saline solution and a procedure to characterize various contact lens polymers is available.
Physical Properties
AQUA->PERMTM 55
Hydroxyethylmethacrylate
Refractive Index
---
Dry
1.51
Wet
1.41
Water Content: (В±1.0%)
55%
Linear Radial Expansion ( В±.02 )
(Determined on each lot)
(Determined on each lot)
1.35
Oxygen Permeability DKx10 -11
(Modified Fatt method)
(Modified Fatt method)
14.0
Water Take-up @ 60% Relative Humidity
0.016% / hr
Hardness (Shore D)
90
Hydration times (0.9% saline)
24 hr
Tints
Clear and Blue
Blank Configurations
Flat and Base Curve
AQUA->PERMTM 38
Hydroxyethylmethacrylate
Refractive Index
---
Dry
1.51
Wet
1.44
Water Content: (В±1.0%)
38%
Linear Radial Expansion ( В±.02 )
(Determined on each lot)
(Determined on each lot)
1.20
Oxygen Permeability DKx10 -11
(Modified Fatt method)
(Modified Fatt method)
9.0
Water Take-up @ 60% Relative Humidity
0.016% / hr
Hardness (Shore D)
90
Hydration times (0.9% saline)
4+hr
Tints
Clear and Blue
Blank Configurations
Flat and Base Curve
