The National Programme for Control of Blindness (NPCB) was launched in 1976 with the goal of reducing blindness prevalence from 1.4% to 0.3% by 2020, emphasizing the importance of eye health. The program targets various causes of blindness in India through initiatives such as free cataract surgeries, school eye screenings, and community awareness campaigns. 'Vision 2020: The Right to Sight' is a global initiative aiming to address avoidable blindness worldwide, focusing on diseases like cataract, refractive errors, and childhood blindness.