Ultrastructure Organization of Collagen Fibrils and Proteoglycans of Stingray and Shark Corneal Stroma

Table 1

Mean collagen fibril diameter of anterior, middle, and posterior stroma of stingray and shark cornea.

	Density/m		Minimum mean diameter ± standard error (nm)		Mean interfibrillar spacing ± standard error (nm)
	Stingray	Shark	Stingray	Shark	Stingray	Shark
Anterior stroma	516	547	22.06 ± 0.31	23.37 ± 0.23	32.74 ± 0.53	35.84 ± 0.34
Middle stroma	444	516	22.12 ± 0.27	24.80 ± 0.16	36.9 ± 0.32	37.86 ± 0.24
Posterior stroma	603	595	22.21 ± 0.28	24.59 ± 0.12	37.83 ± 0.28	35.17 ± 0.23

Value denotes ± standard error.
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