Which form of calcium is deposited in Band shaped keratopathy: (A) Calcium chloride, (B) Calcium hydroxyapatite, (C) Calcium cyanide, (D) Sodium Hydroxyapatite
Answer is B. Band Shaped Keratopathy *Calcium phosphate/ Calcium hydroxyapatite *Deposition in Bowman's membrane or conditions a/w hyperkalemia such as Hyperparathyroidism, renal failure, hypophospahatasia, Sarcoidosis, Pagets disease *Rx: EDTA,Lamellar Keratoplasty, PTK Band Shaped Keratopathy causes