OD oculus dexter (right eye) OH Ocular history OMB Oculo motor balance ONH Optic nerve head Oph Ophthalmoscopy OS oculus sinister (left eye) OU oculus uterque (both eyes) PD Pupillary distance PERRLA Pupils equal, round, reactive to light and accommodation PH Pinhole see Pinhole occluder: 63 - exactly what's on your prescription: 33/30: PD (OS)/PD (OD) Monocular PD for your left eye (OS) and right eye (OD) which is used for single vision glasses. The patient will start reading with their right eye. But they’re your eyes, and you want to know what your prescription means. The “Axis” is also related to astigmatism. I'm a Hall of Famer', The tortured life, tragic crime of the only woman on death row, Pa. GOP plans 'extraordinary measures' to probe votes, Supreme Court signals that Obamacare may survive, Jason Momoa: We were starving after 'GOT', 'There's a screw loose': De Niro revives Trump feud, This stat shows just how much the NFL has changed, WH assigns attorney to agency blocking transition. o.d. You go to your optometrist or ophthalmologist and they test your eyesight. Very few eye prescriptions will have this next part, but it’s good to know about in case it’s on yours. •Cover the left eye (os).
Certain abbreviations are current within the profession of optometry. These numbers describe how many diopters (the measurement of lens power) that you need to have perfect vision. So the farther away you get from zero, the more correction you need.

Sometimes these two are simplified to R and L. A zero (0) would be no correction. I’m going to break down each aspect of your eye prescription, so you can fully understand what’s going on with your sight. If your prescription reads -5, you are significantly nearsighted. It's so easy. We have been assured that the problem is being addressed and service will be restored as quickly as possible. This prevents squinting. Make sure you visit your eye care specialist regularly to see if any numbers need to be changed. Get your answers by asking now. There will be certain numbers under OD, OS and OU columns which are basically Latin abbreviations.– OD (oculus dextrus) means the right eye, OS (oculus sinister) means the left eye; OU (oculus uterque) means ‘both eyes’

To determine what direction that correction should go (either to help you with seeing far away or seeing up close), there will be a plus or minus: Here are two examples: If your prescription reads +1.25, you are slightly farsighted.
•Repeat the test with both eyes (ou). Examination types and enhanced care schemes, The College of Optometrists Members' Handbook, https://en.wikipedia.org/w/index.php?title=List_of_optometric_abbreviations&oldid=966390597, Creative Commons Attribution-ShareAlike License, Harmonious abnormal retinal correspondence, rule used to assess optic disc appearance, (is frequently used but is not recommended), No light perception is considered total visual impairment, or total blindness; see, Near point of convergence or no previous correction, Pupils equal, round, reactive to light and accommodation, Contact lens associated/induced papillary conjunctivitis, Contact-lens-associated/induced papillary conjunctivitis, This page was last edited on 6 July 2020, at 21:02.


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