Evaluation of interpupillary distance in the Turkish population

Figures & data

Table 1 Demographic and clinical characteristics of the subjects

	Mean ± SD	Minimum	Maximum
Age (years)
Female	49.3±20.6	19	89
Male	47.2±20.7	19	88
IPD (mm)
Female	61.4±3.7	49	75
Male	63.9±4.4	52	76
Refractive status (SE)
Right	0.52±2.33	−9.75 D	+9.50 D
Left	0.69±2.62	−9.75 D	+13.50 D

Abbreviations: SD, standard deviation; IPD, interpupillary distance; SE, spherical equivalent; D, diopter.

Table 2 Mean interpupillary distance (mm) values in various age groups

Age group,years (n)	Female (mean ± SD)	Male (mean ± SD)	Total (mean ± SD)	Minimum–maximum
20–30 (223)	59.2±3.1	61.5±3.8	60.3±3.7	49–70
31–50 (158)	62.0±3.1	64.5±3.6	63.0±3.6	55–72
51–70 (252)	62.3±3.6	65.7±4.3	63.8±4.1	52–76
71–89 (123)	62.1±3.8	63.1 ±4.3	62.7±4.1	49–74

Table 3 The differences in the mean IPD values among age groups

Age groups (years)	Mean IPD values (mm), (mean ± SD)	P-value
20–30 versus 31–50	60.3±3.7 and 63.0±3.6	<0.00l
20–30 versus 51–70	60.3±3.7 and 63.8±4.l	<0.00l
20–30 versus 71–89	60.3±3.7 and 62.7±4.l	<0.00l
31–50 versus 51–70	63.0±3.6 and 63.8±4.l	0.061
31–50 versus 71–89	63.0±3.6 and 62.7±4.l	0.676
51–70 versus 71–89	63.8±4.l and 62.7±4.l	0.034

Abbreviation: IPD, interpupillary distance.