When doing an exam, if I checked the right eye by covering the lefy and the left eye by covering the right, and they are both 20/20. Is it correct to put, OU 20/20 and OS 20/20? OR…can i document, OS 20/20? In other words, if they both tested 20/20, do I have to document them separately. Or can I simply put OU 20/20?
Comment by Christina — March 1, 2012
Please ignore my previous question. I got my letters mixed up. The question below makes better sense. Thanks
When doing an exam, if I checked the right eye by covering the left and the left eye by covering the right, and they are both 20/20. Is it correct to put, OD 20/20 and OS 20/20? OR…can i document, OU 20/20? In other words, if they both tested 20/20, do I have to document them separately. Or can I simply put OU 20/20?
Comment by Christina — March 1, 2012
You have to document it as OD 20/20 and OS 20/20. OU 20/? means the vision you are getting without covering either eye.
Comment by Robert — April 17, 2012
The explanation is very helpful. Just wondering, “oculus dexter”, “oculus sinister” and “oculus uterque”, are they Latin or other language origins? Thanks.
Comment by Tracy Dou — May 3, 2012
They are Latin!
Comment by Mrugesh Shah — May 14, 2012
OU OS and OD are for accurately documenting each or both eye, since the pronunciations are in Latin, we must understand that Latin is considered a dead language, so I feel pronunciation is not as important as understanding the symbolism.
Comment by Max — May 28, 2012
I just started working in Patient Services in an eye care practice and have wondered all week what OS, OD and OU actually mean–thank you for answering my burning question so clearly!
Comment by Regina — June 10, 2012
If a patient’s RX reads -.25 pl OS -.25 pl OD with a 2.50 ADD and is having double vision when reading what is the medical term for the problem there are 2 ?
Comment by Ernie — July 29, 2012
I made a mistake on my question:(it’s supposed to say when they have double vision watching TV ?there are 2 names for this problem,what are the names.
I am buying contacts and the site I am buying them from is asking Right Eye (OD) and Left Eye (OS) then theres a dropdown list under each and I am rather confused what that is about? Would someone please explain to me what the drop down lists are about that have -1 to – 10? I really dont understand what its about, and I cant purchase the contacts until those fields are filled out.
Comment by Cady — June 29, 2013
OD = Oculus Dextra
OS = Oculus Sinistra
OU = Oculus Uterque.
I am also looking for the pronunciation of OU. It’s not even on howjsay.com and I have been able to find all other medical pronunciations there.
Comment by chiffonade — July 4, 2013
i have : OD: sphere -3.50
OS: sphere -2.00
So how many degree i have at the right eyes and the left eyes?
OD. +25 sphere. -50 cylinder. 020. Axis. And. OS. + 50 sphere. -50. Cylinder. 125. Axis. And. + 200. + 200. Prism. Please make me understand. How bad my eyes are ? I would appreciate if you could explain in simple terms. Than you
Comment by Lajya. Karrol — December 3, 2013
Vanessa and Lajya … if you want to understand the components of your glasses prescription, you may want to watch this video lecture I created on optics:
How sinister of the profession to carry on the notion that we lefties are somehow inferior or less able than those of us who are Dexterous. Left and Right would be clearer, simpler. Not sure I like having an eye that is thought of by the trade as sinister!
Comment by Larry G — March 3, 2014
this is the first time to know these abbreviation many thanks for your help
Comment by ali — March 30, 2014
thanks dear firend
Comment by mohammad-iran — April 18, 2014
Thanks a lot it is very useful for me
Comment by Jaya Kumari — September 25, 2014
what is O.E
Comment by subaby — October 19, 2014
i had a medical examination and i heard the doctor said .5 OU.. what does that mean?
Comment by macky — November 15, 2014
It is read as OO-TER-KWE , Oi-KU-LUS (yes, Oi) OO-Ter-Kwe.
Comment by Neil — December 1, 2014
Macky: The doctor was describing the “cup-to-disk ratio” to describe your optic nerve. A large ratio, such as 0.6 or higher, is a potential sign of glaucoma. You can read more about cupping here.