Steeper Iris Conicity Is Related to a Shallower Anterior Chamber: The Gutenberg Health Study

Table 1

Characteristics of the study sample of the Gutenberg Health Study. Means (standard deviations) and proportions in percentage (n/N) for dichotomous variables in the total cohort for males and females. CCT: central corneal thickness; IOP: intraocular pressure; OD: right eyes; OS: left eyes.

Variable	All (3708)	Men (1913)	Women (1795)
Sex (women)	48.4% (1795/3708)	0% (0/1913)	100.0% (1795/1795)
Age (y)	58.7 (10.4)	59.2 (10.4)	58.1 (10.3)
Smoking (yes)	16.4% (605/3680)	16.7% (318/1899)	16.1% (287/1781)
Body mass index (kg/m^2)	27.5 (4.8)	27.9 (4.2)	27.0 (5.4)
Height (m)	1.70 (0.09)	1.77 (0.07)	1.64 (0.07)
Weight (kg)	80.0 (16.2)	87.3 (14.2)	72.1 (14.5)
Eyes
Spherical equivalent (dpt) (OD)	−0.41 (2.51)	−0.44 (2.52)	−0.38 (2.49)
Spherical equivalent (dpt) (OS)	−0.42 (2.53)	−0.46 (2.55)	−0.37 (2.52)
CCT (μm) (OD)	549 (35)	553 (35)	546 (35)
CCT (μm) (OS)	550 (35)	552 (35)	547 (35)
IOP (mmHg) (OD)	14.88 (2.93)	14.97 (3.00)	14.78 (2.85)
IOP (mmHg) (OS)	14.99 (2.95)	15.17 (2.98)	14.80 (2.91)
Axial length (mm) (OD)	23.7 (1.2)	24.0 (1.2)	23.4 (1.2)
Axial length (mm) (OS)	23.7 (1.3)	24.0 (1.3)	23.4 (1.2)
Lens thickness (mm) (OD)	4.37 (0.36)	4.38 (0.37)	4.36 (0.35)
Lens thickness (mm) (OS)	4.42 (0.35)	4.44 (0.36)	4.41 (0.34)
Corneal power (dpt) (OD)	44.0 (1.6)	43.6 (1.6)	44.4 (1.5)
Corneal power (dpt) (OS)	44.0 (1.6)	43.6 (1.6)	44.4 (1.5)
Anterior chamber depth (mm) (OD)	2.70 (0.36)	2.75 (0.37)	2.64 (0.34)
Anterior chamber depth (mm) (OS)	2.69 (0.36)	2.74 (0.36)	2.63 (0.35)
Mean pupil diameter (mm) (OD)	2.69 (0.45)	2.63 (0.44)	2.75 (0.46)
Mean pupil diameter (mm) (OS)	2.67 (0.44)	2.61 (0.42)	2.73 (0.45)
Iris conicity
Iris conicity mean (°) (OD)	8.28 (3.29)	8.45 (3.26)	8.09 (3.31)
Iris conicity mean (°) (OS)	8.51 (3.27)	8.65 (3.22)	8.36 (3.32)