Rigid gas permeable contact lenses can offer a safe option for obtaining the best possible visual result in cases of iatrogenic keratectasia. [12,14,54] Typically, patients with keratectasia complain ...

With regard to RGP contact lenses, the 3rd and 9th hours of the mid-periphery of the cornea are the sites of the lens support and determine the base curve of the lens to fit. More specifically, after ...