A case of Primary Band Keratopathy Treated by EDTA Application in Patient with Hyperparathyroidism

ABSTRACT

PURPOSE: We report a case of band keratopathy caused by hyperparathyroidism which was treated using EDTA (disodium ethylenediaminetetraacetic acid). METHODS: A 33-year-old woman with band keratopathy caused by hyperparathyroidism with elevated serum calcium, without any eye abnormalities was seen at Korea university hospital. Her corneal epithelium was removed after topical anesthesia, and the lesion was exposed by chemical chelating agent of 0.02M EDTA for 10 minutes, then, dropped topically every 30 seconds, the grayish white opacity which presents the calcium deposits was removed by chemical chelation of 0.02M EDTA in cornea. RESULTS: Most of the opacity was disappeared by chemical chelation with improvement of vision by 4 lines from 10/100 to 10/20. Cosmeticity was improved dramatically as well. No recurrence of corneal opacity was observed at 14 months after the operation. CONCLUSIONS: We experienced one case of band keratopathy caused by only hyperparathyroidism with hypercalcemia, without chronic uveitis, glaucoma, corneal edema, recurrent trauma any eye abnormalities. The primary band keratopathy was successfully treated by chemical chelation of EDTA visual acuity was improved, foreign body sensation was relieved, and good cosmetic results were achieved. To our best knowledge, this is the first case of primary band keratopathy with hyperparathyroidism with hypercalcemia without any eye abnormalities, and we successfully treated by chemical chelation of EDTA.