[Distinctive Wessely immune ring in keratitis-a chameleon]. / Ausgeprägter Wessely-Immunring bei Keratitis ­ ein Chamäleon.

ABSTRACT

A Wessely immune ring can be found in various corneal infections as well as in non-infectious processes. Its appearance can aid in the differential diagnosis but can also be misleading. A definitive diagnosis can only be reached when all clinical and microbiological findings are taken into consideration. This article discusses and critically reflects on the differential diagnostic considerations and treatment strategies in the context of a case report on a 31-year-old patient with contact lenses and diffuse endothelial decompensation with a focal, mid-peripheral infiltrate and a Wessely immune ring.