. Author manuscript; available in PMC: 2010 Apr 1.

Published in final edited form as: Am J Ophthalmol. 2009 Jan 18;147(4):717–724.e1. doi: 10.1016/j.ajo.2008.10.007

Table 2.

Mean (SD) [range] of follow-up minus baseline changes in visual field parameters by disc change classification in the Collaborative Initial Glaucoma Treatment Study (CIGTS) five-year optic disc study

Change in Visual Field Parameter	Disc Change Classification			P-value^a	Total N=342^b
Change in Visual Field Parameter	Reversal of Cupping N=22	No Change N=298	Glaucomatous Progression N=22	P-value^a	Total N=342^b
Mean Deviation	0.33 (3.27) [−7.7, 4.9]	0.29 (3.35) [−20.3, 10.58]	−3.21 (5.96) [−19.1, 4.36]	<0.001	0.06 (3.66) [−20.3, 10.58]
Pattern Standard Deviation	0.01 (2.17) [−3.80, 5.29]	−0.11 (2.10) [−8.84, 8.92]	1.35 (3.37) [−4.01, 9.22]	0.012	−0.01 (2.23) [−8.84, 9.22]
CIGTS Visual Field Score	0.15 (4.02) [−6.90, 9.50]	−0.21 (3.49) [−14.7, 15.00]	2.20 (3.80) [−3.80, 11.90]	0.009	−0.03 (3.58) [−14.7, 15.00]

One-way analysis of variance

Six eyes lacked follow-up visual field data