Table 2.

Disc edge statistics for normal subjects analyzed from individual visits. See text for a description.

Subject	Age	T avg [pixel]	NT avg [pixel]	T<NT [%]	T<Rb [%]	NT<Rb [%]
1	26	0.98	1.46	0.50	0.89	0.69
2	47	1.32	3.25	0.75	0.81	0.44
3	33	0.50	1.65	0.81	1.00	0.72
4	39	0.65	2.05	0.81	0.94	0.58
5	34	0.50	1.87	0.92	1.00	0.75
6	50	0.85	1.52	0.78	0.94	0.64
7	58	0.70	2.13	0.88	1.00	0.63
8	34	0.64	2.27	0.92	0.97	0.39
9	50	0.74	2.37	1.00	1.00	0.45
10	54	0.63	1.48	0.79	1.00	0.79
11	39	0.63	2.58	0.94	1.00	0.44
TOTAL	39a	0.76	2.07	0.82	0.95	0.59

^amedian age

^bThe threshold R = 2 pixels