Sinistra -ae. The word sinister is derived from it.
OS is the abbreviation for left eye. OS stands for the Latin term, oculus sinister.
My guess: Dexter is Latin for right side. Sinister is Latin for left side.
O. S. stands for "oculus sinister", which is Latin for "left eye". O. D. stands for "oculus dexter", which is Latin for "right eye".
Right OS = Left Yes....from oculus (eye) dexter (right) and oculus sinister(left)
OD = right eye, OS = left eye. It's latin based OD = ocula diestra, OS = ocula siniestra, OU = oculi uniti (both eyes)
The abbreviation "OS" stands for oculus sinister, Latin for LEFT EYE. It is a term that JCAHO no longer recognizes, so it should just be written out as "left eye"
"Oculus sinister" is Latin for left eye, while "plano" refers to something flat or without refractive power. So, "oculus sinister plano" could refer to an eye that is flat or without refractive power in the left eye.
It comes from the Latin "oculus" meaning "eye"
eye = oculus
"od" on a prescription for eye drops mean "right eye"--as in apply the drops to the right eye. "os" means "left eye".
The terms Oculus Dexter (right eye), Oculus Sinister (left eye), and Oculus Uterque (both eyes) are used in medicine, usually abbreviated OD, OS, and OU, respectively.
Eye in latin is: Oculus, it's plural form is: Oculi.