Dr. Blase is a wonderful, personable doctor. I have been wearing Corrective Refractive Therapy (CRT) lenses for 23 years. I sleep with hard contact lenses that reshape my cornea to 20/20 vision ( before CRT, vision is 2.50 & 3.00). It is like having Lasik surgery without the surgery! This vision lasts about 20 hours. LOVE IT!