AIM:To study the concentration changes of the serum magnesium, calcium, potassium, sodium and chloride ions of the patients of Leber congenital amaurosis(LCA).

METHODS:Based on the retrospective study and the simple size in the statistics, 50 cases of LCA patients and 99 cases of normal people were tested the serum ions by professionals in hospital according to the single blind study. Data were analyzed statistically between LCA and normal groups.

RESULTS: In the clinical serum ions test of LCA group, the concentration of calcium and potassium were 2.338±0.090mmol/L and 4.164±0.356mmol/L respectively, which were significantly higher than those of the normal group(all P<0.05), but the concentration of magnesium was 0.835±0.059mmol/L, which was significantly lower than the normal group(P<0.05). There were no significantly differences in remainder two serum ions concentration of LCA groups,comparing with the normal group(all P>0.05).

CONCLUSION: In the patients with LCA, abnormal concentration changes of magnesium, calcium and potassium will be needed to concern of the ophthalmologist, which is probably related with the occurrence of LCA.