PORDAR Rigid Gas Permeable Contact Lens
TFDA approval# 004880
Description
PORDAR Rigid Gas Permeable Contact Lenses for daily wear are available as lathe cut with spherical, aspherical in clear and tinted versions. The posterior curve is selected to fit an individual eye and the anterior curve is properly made to correct refractive error. A peripheral curve system on the posterior surface is to allow tear exchange between the lens and the cornea.
The PORDAR Rigid Gas Permeable Contact Lens material is a thermoset copolymer derived from fluorosilicone acrylate monomer.
The PORDAR Rigid Gas Permeable Contact Lenses offer color enhancement of the eye and as a handling aid for locating the lens.
| Lens Specification | |
|---|---|
| Base Curve: | 6.50 mm ~ 9.00 mm |
| Power: | -20.00 D ~ + 12.00 mm |
| Diameter: | 7.0 mm ~ 10.5 mm |
| Center Thickness: | 0.05 mm ~ 0.70 mm |
| Color: | Blue, Ice Blue, Green, Brown, Clear |
| Physical Properties | |
|---|---|
| Special Gravity | 1.15 |
| Refractive Index | 1.453 |
| Light Transmittance | 95% Blue 98% Ice Blue 95% Green 85% Brown 99% Clear |
| Wetting Angle | 14.7 |
| Water Content | <1% |
| Oxygen Permeability | 43 x 10-11 Dk* at 35° * (cm2/sec) / (ml O2/ml x mmHg) Revised method of Irving Fatt, Ph.D. |
| Hardness (Shore D) | 83 |
Indications
The PORDAR Rigid Gas Permeable Contact Lenses are indicated for the correction of visual acuity in not-aphakic persons with non-diseased eyes that are nearsighted (myopia), farsighted (hyperopic).
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