OD - Wikipedia
https://en.wikipedia.org/wiki/OD
WebOD or o.d., an abbreviation used in medical prescriptions for omne in die or "once daily" both meaning "take once every day". Doctor of Optometry (O.D.) Oculus dexter, ocular dexter, or ocularis dexter, meaning "right eye" in general ophthalmologic or optometric usage, particularly in eyeglass prescriptions. Osteochondritis dissecans, a medical ...
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