Vision impairment (VI) occurs when the visual system and one or more vision functions are impaired by a condition affecting the eyes, and is categorized as mild, moderate, or severe distance VI or blindness; and near VI. 1 Most published data measure VI exclusively using visual acuity, leaving aside individuals whose impairment is compensated with contact lenses 2 and including only people with moderate-to-severe VI (low vision) or blindness. Around 43 million people worldwide were blind in 2020, and it is estimated that, by 2050, factors such as urbanization, population growth, and aging could lead to about 895 million people living with distance VI, of whom 61 million will be blind. 3 Problems related to vision can affect all stages of life, especially young children and the elderly. 3 Because impaired vision can interfere with the cognitive, social

No abstract

No abstract