Table 1.

Mean Retinal Nerve Fiber Layer (RNFL) Thickness Stratified by Age Category

Age Category (yrs)	No. of Subjects (%)	Mean RNFL Thickness (μm) ± Standard Deviation	95% Confidence Interval
18–29	58 (18)	103.7±9.7	101.2–106.2
30–39	45 (14)	104.7±10.4	101.7–107.8
40–49	74 (23)	99.9±12.2	97.1–102.7
50–59	71 (22)	99.4±12.7	96.4–102.3
60–69	43 (13)	96.89±10.8	93.7–100.1
70–85	37 (11)	94.1±10.0	90.9–97.3
Total	328	100.1±11.6	98.8–101.3