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Visual acuity with eye chart at Near 15.7 inches (400 mm) and without (sc: Latin sine correctore) correctors (spectacles); Ncc is with (cc: Latin cum correctore) correctors. See Visual_acuity#Legal_definitions: VA OS Left visual acuity VA OD Right visual acuity VDU Visual display unit VF Visual field VPS Variable prism stereoscope WD
left eye o can be mistaken as an a which could read "a.s.", meaning left ear o.u. oculus uterque: both eyes o can be mistaken as an a which could read "a.u.", meaning both ears oz ounce p. perstetur: continue part. æq. partes æquales: equal parts per: per: by or through p.c. post cibum: after meals p.c.h.s., pc&hs post cibum et hora somni
OS: left eye (from Latin oculus sinister) orthopedic surgery: overall survival OSA: obstructive sleep apnea: OSH: outside hospital Osm: osmolarity: Osteo: osteomyelitis: OT: occupational therapy: OTC: over-the-counter drug: OTD: out the door (discharged) OTPP: oriented to time, place, and person OTTR: Organ Transplant Tracking Record OU: both ...
Oculus means eye. OS is an abbreviation for oculus sinister, Latin for left eye from the patient's point of view. OU is an abbreviation for oculi uterque, Latin for both eyes. N.B.: In some countries, such as the United Kingdom, RE (right eye), LE (left eye), and BE (both eyes) are used. Sometimes, just right and left are used.
Meaning [1] Latin (or Neo-Latin) origin [1] a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte every night Omne Nocte a.s., as, AS left ear auris sinistra a.u., au, AU both ears together or each ear aures unitas or auris uterque b.d.s, bds, BDS 2 times a day bis die sumendum b.i.d., bid, BID
external os, the external orifice of the uterus; internal os, the internal orifice of the uterus; per os, meaning "ingestion by mouth" os or ostium, the opening of a coronary artery; O.S. or OS, oculus sinister, meaning "left eye" in general ophthalmologic or optometric usage, particularly in eyeglass prescriptions (deprecated abbreviation)
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Late Renaissance or early Baroque design of an O, from 1627. Its graphic form has remained fairly constant from Phoenician times until today. The name of the Phoenician letter was Ężeyn, meaning "eye", and its shape originates simply as a drawing of a human eye (possibly inspired by the corresponding Egyptian hieroglyph, cf. Proto-Sinaitic script).