Conclusion
Several factors can help to differentiate between glaucomatous and nonglaucomatous optic neuropathy.1,2,3
Glaucomatous optic neuropathy is associated with:
Older age.
Elevated intraocular pressures.
Thinner pachymetry.
Visual acuity better than 20/40.
Minimal if any neuroretinal rim pallor.
Pallor has been reported in glaucomatous optic neuropathy.
Pallor may initially be absent in nonglaucomatous optic neuropathy.
Greater cup-disc ratio with vertical elongation.
Focal or diffuse neuroretinal rim loss (87% specific).
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