. Author manuscript; available in PMC: 2011 Aug 1.

Published in final edited form as: Am J Ophthalmol. 2010 Jun 11;150(2):163–168.e1. doi: 10.1016/j.ajo.2010.02.024

Table 1.

Mean ± standard deviation of clinical and ocular variables for healthy blacks and whites.

Parameter	Whites (n= 135 eyes)	Blacks (n= 46 eyes)	P value
Age (years)	66.00 ± 11.9	58.41 ± 15.7	0.009
CCT^a (μm)	562 ± 36.8	534.09 ± 39.4	0.001
GAT^b (mmHg)	16 ± 2.9	15.77 ± 2.81	0.658
AL^c (mm)	23.90 ± 1.21	23.77 ± 1.15	0.579
Corneal Curvature (D)	43.28 ± 1.68	43.76 ± 1.65	0.148
ORA^d Parameters
CH^e (mmHg)	10.44 ± 1.6	9.70 ± 1.72	0.033
CRF^f (mmHg)	10.70 ± 1.8	9.84 ± 1.92	0.028
IOPg^g(mmHg)	16.36 ± 4.35	15.57 ± 3.37	0.273
IOPcc^h (mmHg)	16.69 ± 4.2	16.80 ± 3.16	0.874

: Corneal central thickness;

: Goldmann applanation tonometer;

: Axial Length;

: Ocular Response Analyzer;

: Corneal hysteresis;

: Corneal Resistance Factor;

: Intraocular pressure equivalent to Goldmann;

: Corneal compensated intraocular pressure.