Two visually impaired men walk during a rally to mark the International Day of Persons with Disabilities in New Delhi, India, Dec. 3, 2019. The International Day of Persons with Disabilities, inaugurated by the United Nations in 1992, is observed annually on Dec. 3. (Xinhua/Javed Dar)

Two visually impaired men attend a rally to mark the International Day of Persons with Disabilities in New Delhi, India, Dec. 3, 2019. The International Day of Persons with Disabilities, inaugurated by the United Nations in 1992, is observed annually on Dec. 3. (Xinhua/Javed Dar)

Three visually impaired men attend a rally to mark the International Day of Persons with Disabilities in New Delhi, India, Dec. 3, 2019. The International Day of Persons with Disabilities, inaugurated by the United Nations in 1992, is observed annually on Dec. 3. (Xinhua/Javed Dar)