First, you should know that RGP Contact Lenses are referred to the Rigid Gas Permeable Contact Lenses. Comparing with normal contact lenses, RGP or rigid gas permeable contact lenses play an important role in providing crisp, clear vision for a wide range of persons. Now more commonly known as oxygen permeable, RGP contact lenses come in a variety of brands including Boston, Polygon, Flour perm, and others. Actually, we can say that RGP Contact Lenses are more convenient and comfortable than normal contacts because of its oxygen permeability, and perfect design. RGP is superior to spectacles, and it can obtain more excellent optic corrections and better corrected visual acuity. RGP has good therapeutic effect and is a safe, effective and rapid means to improve visual acuity.