Table 1.

Mean Corneal Densitometry Values of Anterior, Central, Posteriorm and Total Layers Over Annuli of 0 to 2 mm

Location, ϕ 0–2 mm	Mean	Standard Deviation	Range
Anterior layer	20.85	3.02	15.80–31.50
Center layer	13.14	1.61	10.60–18.00
Posterior layer	10.43	1.66	6.90–14.50
Total cornea	14.81	1.85	12.40–21.30

ϕ, annulus; mm, millimeter.