The document discusses the problem of blindness globally and the potential solution of Vision 2020. It notes that in 1994, 50 million people were blind from various causes like cataract, trachoma, vitamin A deficiency, with 60% of blindness from cataract. It states that 80% of blindness is preventable or curable. The Vision 2020 initiative aims to reduce blindness worldwide by implementing inexpensive interventions like cataract surgery for $20 and tetracycline ointment for $2.50. The initiative has the potential to reduce blindness by 13 million people by 2020.