Fluoroperm contact lenses are custom made to meet the specific needs of your prescription. Fluoroperm Product Information Fluoroperm rgp lenses. Each pair is made-to-order following the precise specifications of your doctor. * Gas permeable lenses are often an excellent choice for people with sensitive eyes, dry eyes, or astigmatism. * Note: Additional charges may apply for aspheric, toric, bitoric or bifocal designs.