What does os mean when writing a prescription??

Question

What does os mean when writing a prescription??

Answer 1

os usually means apply  to the left eye

Answer 2

os means left eye.

Answer 3

in our pharmacy if we don't have enough pills to fill the entire prescription, they will write o/s and the number of pills that's actually been dispensed.  o/s is out of stock.

OS is also LEFT EYE when you've got a prescription from the eye doctor.

Answer 4

You must be referring to an eye medication. OS stands for Optic ( eye) Sinister ( because it's the left eye, which is associated with the devil).This is why left-handed children were taught by the Catholic faith to use their right hand to write instead of the left hand ( sinister = evil)