Table 1.

Criteria for Classification of Participants for Analyses Shown in Subsequent Tables

Diagnostic Category	IOP < 22 mm Hga		Photo Grade		SAP Visual Field Test Result
Normal (recruited or referred as normal)	Yes and no IOP-lowering medications	AND	Normal	AND	Normal
Suspect by source (referred as patient)	Yes and no IOP-lowering medications	AND	Normal	AND	Normal
Ocular hypertension	No or taking IOP-lowering medications	AND	Normal	AND	Normal
Abnormal visual field test result only	NA	AND	Normal	AND	Glaucomatous (repeatable)
Glaucomatous optic neuropathy only	NA	OR	Glaucomatous	AND	Normal
Abnormal visual field test result and glaucomatous optic neuropathy	NA	AND	Glaucomatous	AND	Glaucomatous (repeatable)

Abbreviations: IOP, intraocular pressure; NA, not applicable; SAP, standard automated perimetry.

^aIntraocular pressure 22 mm Hg or higher measured as such on baseline ocular examination or documented history of such.