Table 1.

Summary of proposed objective criteria for definition of glaucomatous optic neuropathy (GON) by Iyer et al. An eye with definite GON would have corresponding damage on optical coherence tomography (OCT) and standard automated perimetry (SAP) according to either one of the criteria below, after exclusion of non-glaucomatous conditions that could cause such abnormalities.

OCT	SAP
Inferior abnormal OCT quadrant as provided by the instrument’s statistical package	Superior abnormal GHT region with at least 3 points with P<5% on the pattern deviation plot
Superior abnormal OCT quadrant as provided by the instrument’s statistical package	Inferior abnormal GHT region with at least 3 points with P<5% on the pattern deviation plot