[Blue sclera in iron deficiency conditions].Klin Med (Mosk). 1991 Aug; 69(8):85-6.KM
The study involved 91 inpatients with anemia or/and blue sclera. Of them 66 proved iron-deficient: 59 with blue sclera against 7 without such. Twenty-three anemic patients free of iron-deficiency included 9 patients with blue sclera and 16 without them. Blue sclera were identified in 2 patients in the absence of anemia. Blue sclera as an indication of iron-deficiency has sensitivity of 89, specificity of 64 and accuracy of 82%. It is an additional sign in identification of anemia.