O.D.

O.D. (uncountable)

1. (US) Doctor of optometry, a postgraduate degree.
2. (Britain) Ordnance datum, a reference point used for measuring elevations or depths.
3. Abbreviation of ordinary seaman.
4. (eyewear) Initialism of O.D. (“oculus dexter”). (the right eye from the patient's point of view)

• (eyewear): O.S.

• D&O, D.O., DO, d/o, do, do.

O.D.

1. (Can we verify⁽⁺⁾ this sense?) (eyewear) O.D. (“oculus dexter”) (the right eye from the patient's point of view)

• O.S.