Table 1.

Patient characteristics and causes of BSK

Characteristics	Number, mean ± SD	Cause	Eyes, n %
Age (years)	71.7±15.0	Idiopathic	13	54.2
Sex		Chronic renal failure	5*	20.8
Male	7 (9 eyes)	Diabetes mellitus	8*	33.3
Female	9 (15 eyes)	Hypercalcemia	0	0
Laterality		Hyperparathyroidism	0	0
Right	11	Sarcoidosis	0	0
Left	13

Note:

^*Two eyes had both chronic renal failure and diabetes mellitus.

Abbreviations: BSK, band-shaped keratopathy; SD, standard deviation.