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Heterologous penetrating keratoplasty for treatment of a corneal sequestrum in a cat


  • Dr Townsend's current address is the D208 Veterinary Medical Center, Michigan State University, East Lansing, MI 48824-1314, USA.

Address communications to: Wendy M. Townsend Tel.: +1 517 353 5420 Fax: +1 517 355 5164 e-mail:


A corneal sequestrum was diagnosed in an 8-year-old, neutered male Burmese cat. A heterologous penetrating keratoplasty (PK) (fresh canine corneal tissue) was performed to restore a clear visual axis. A heterograft was selected in order to decrease the risk of viral transmission as a screened donor was not available. One month postoperatively the graft was vascularized and opaque. The owner failed to return for recheck examinations until 16 months postoperatively at which time only a faint central nebula remained.