Table 1.

Quantitative Analysis of Collagen Fibers on Images Obtained with TEM

Numbers of collagen fibers in corneal fascicles	Younger subjects (n = 10)	Older subjects (n = 10)	P a
Total collagen fibrils in each fibersb	28.3 ± 1.2	15.4 ± 1.4	<0.0001
Thin collagen fibers %c	61.5 ± 3.1	4.3 ± 1.8	<0.0001
Thick collagen fibers %c	37.3 ± 4.6	91.5 ± 3.1	<0.0001
Swelled collagen fibers %c	1.4 ± 0.6	31.6 ± 4.4	<0.0001
Total number of corneal collagen fibersb	36.4 ± 5.3	35.3 ± 1.2	=0.5302

^a P is of high significance if >0.001.

^bResults are expressed as C.U. ± SEM.

^cResults are expressed as %.