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. 2021 Nov 27;13:311–322. doi: 10.2147/OPTO.S336361

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© 2021 Senjam et al.

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Assistive technology for visual impairment (First row: traditional products: (A) Braille slate and stylus, (B) optical magnifiers, (C) video magnifiers; second row: smartphones accessible apps: (D) Kibo, (E) Visor, (F) operating TalkBack.