Common Abbreviations in Ophthalmology

Editor and Author: Jonathan A. Barnett, MD , Ghazi Bou Ghanem, MD, Meagan Tran, MD, Marina Shenouda, MD

Reviewed by John B. Bond III, MD


  • OD = Right eye | OS = Left eye | OU = Both eyes 
  • VA = Visual acuity | VAcc = with correction [glasses or contact lenses] | VAsc = without correction 
  • PH = Pinhole acuity - PHNI = No Improvement of vision with pinhole 
  • Gtt = Drops 
  • Ung = Ointment 
  • EOM = Extraocular muscles 
  • IOP = Intraocular pressure
  • CVF = Confrontation visual fields 
  • CF = Count fingers 
  • HM = Hand motion 
  • DFE = Dilated fundus exam | SLE = Slit lamp exam | PLE = Pen light exam 
  • RAPD = Relative afferent pupillary defect 
  • KED = Corneal epithelial defect (i.e., corneal abrasion) 
  • PEE / SPK = Corneal punctate epithelial erosions / Superficial punctate keratopathy 
  • FBS = Foreign body sensation 
  • PFATs = Preservative-free artificial tears 
  • SCH = Subconjunctival hemorrhage 
  • DD = Optic disc diameter (can be used as unit of measurement in retinoscopy) 
  • W&q = Conjunctiva is white and quiet (i.e., normal) 
  • D&q = Anterior chamber is deep and quiet (i.e., normal, no inflammation) 
  • AC = Anterior chamber 
  • ON = Optic nerve | ONH = Optic nerve head 
  • RD = Retinal detachment 
  • PVD = Posterior vitreous detachment 
  • DR = Diabetic retinopathy | NPDR: Nonproliferative DR | PDR: Proliferative DR 
  • CNV = Choroidal neovascularization 
  • NVI = Neovascularization of the iris | NV = Neovascularization of the angle | NVD = Neovascularization of the optic disc | NVE = Neovascularization elsewhere (usually peripheral retina) 
  • CE/IOL = Cataract xtraction with intraocular lens (i.e., cataract surgery) 
  • IV = Intravitreal (e.g., “IV injection”)

Last updated on