I've been practicing optometry for nearly 30 years. It's interesting where the source of useful information regarding my field will come from. I had a bifocal contact lens patient who came into my office. He was wearing a type of bifocal contact lens that I stock. This lens is the type that is usually given to a patient in their early 40s. With a little modification, this patient gave me the idea to start fitting this lens to patients in their 50s and above. I had not thought of this before. I have met with very good success for this population of patients who want to wear bifocal contact lenses.