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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: J Glaucoma. 2012 Oct;21(8):551–561. doi: 10.1097/IJG.0b013e31821dac66

Table 3.

Contingency table of visual fields classified as normal and abnormal using the Advanced Glaucoma Intervention Study (AGIS) scoring system, Glaucoma Severity Staging (GSS) system, and Enhanced Glaucoma Severity Staging (eGSS) system.

Count AGIS eGSS
Abnormal Normal Abnormal Normal
Total %
Abnormal		 575
29.9		 441
23.0		 574
29.9		 442
23.0
GSS Normal 35
1.8		 870
45.3		 33
1.7		 872
45.4
Count AGIS
Abnormal Normal
Total %
Abnormal		 516
26.9		 91
4.7
eGSS Normal 94
4.9		 1220
63.5