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Ophthalmology and Visual Sciences

Calcific band keratopathy with lucent holes

Calcific band keratopathy with lucent holes

Category(ies): Cornea
Contributor: Jesse Vislisel, MD
Photographer: Randy Verdick, FOPS

Calcific band keratopathy (BK) is a corneal degeneration that is characterized by deposition of calcium within the superficial cornea, mainly within Bowman's layer.  BK usually begins as fine, yellow-white deposits in the periphery that may coalesce over time to form a horizontal band across the cornea.  This photograph shows BK in a patient with HLA-B27-associated uveitis.  The "Swiss cheese" appearance derives from lucent "holes" in the calcific pattern due to corneal nerve penetration through Bowman's layer.