UK Keratoconus Self-Help and Support Association

Please guide from where I can get the following lens : BC = 6.7 Power= -3.50 Dia = 9.30 Material = CAB I was using this lens since 1992, made by Ciba-vision , and discontinued. Have tried Rose K, and Persecon pek from DT with Hybrid FS material. These lenses work for about year and then developed se...