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. 2019 Jun 21;9(6):e027441. doi: 10.1136/bmjopen-2018-027441

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Percentage of eyes with good VA (≥70 letters), intermediate VA (36–69 letters), and poor VA (≤35 letters) at different follow-up times (A) and comparison of cohorts of different follow-up times at 1 year (B). VA - visual acuity.