A 58-Year-Old Doctor Uses 3 Tricks to Shield Himself From Near-and Far-Sightedness

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https://www.theepochtimes.com/health/a-58-year-old-doctor-uses-3-tricks-to-shield-himself-from-near-and-far-sightedness-5402440?utm_source=ref_share&src_src=ref_share&utm_campaign=in-cc&src_cmp=in-cc