Table 1. Demographic and clinical features of the scleroderma patients and control subjects.

	Scleroderma group (n=46)	Control subjects (n=31)	P-value
Age (year)	48.2±9.2	52.4±12	0.1
Gender (male/female)	3/43	6/25	0.086
BMI (kg/m2)	26.1±3.6	26.8±3.6	0.37
ANA positivity, n (%)	35 (76)
Anti-centromer Ab, n (%)	10 (21.7)
Anti-SCL-70 Ab, n (%)	9 (19.5)
AXL (mm)	22.80±0.71	22.71±0.64	0.55
SE (diopter)	−0.77±1.93	0.06±1.16	0.072
Nasal choroidal thickness (μm)	148±51.5	261.9±66.9	0.012*
Temporal choroidal thickness (μm)	181.8±62.7	276.5±70.2	0.046*
Subfoveal choroidal thickness (μm)	230.5±66.3	363.2±83.16	< 0.001*

Abbreviations: ANA, anti-nuclear antibody; Ab, antibody; AXL, axial length; BMI, body mass index; SE, spherical equivalent refractive error.

*P<0.05.