optic nerve abnormalities consistent with glaucoma but no visual field abnormalities on any white-on-white visual field test, or abnormalities present only on short-wavelength
Mild or early-stage glaucoma (defined as optic nerve abnormalities consistent with glaucoma but no visual automated perimetry or frequency-doubling perimetry)
optic nerve abnormalities consistent with glaucoma and glaucomatous visual field abnormalities in one hemi-field, and not within 5 degrees of fixation
optic nerve abnormalities consistent with glaucoma and glaucomatous visual field abnormalities in both hemifields, and/or loss within 5 degrees of fixation in at least one hemifield