Introduction In 2020, at least 2·2 billion people were affected by blindness and vision impairment globally: 91·75{a5ceed037b574a4d8c6b44a0a7290437cee40655417128da3b56d864fe64414f} of these individuals had moderate or severe vision impairment, 87·68{a5ceed037b574a4d8c6b44a0a7290437cee40655417128da3b56d864fe64414f} of whom lived in low-income and middle-income countries (LMICs). 1 Burton MJ Ramke J Marques AP et al. The Lancet Global Health commission on global eye health: vision beyond 2020. As the LMIC with the largest population in the world, China has 8·69 million citizens with blindness. Population ageing and growth, as well as urbanisation, have shifted the spectrum of blindness-causing eye diseases to non-communicable conditions, and cataracts, glaucoma, age-related macular degeneration, diabetic retinopathy, and pathological myopia have become the leading blindness-causing eye…