Progression to serious complications such as corneal ulceration and perforation or superimposed bacterial infection is possible if the condition is left untreated.[2] In an area with a high prevalence of TB, PKC is usually associated with a variety of disease forms, including pulmonary TB, tuberculous lymphadenitis and spinal TB.[1–3] Hypersensitivity to tuberculin protein may also be found, even without tubercular disease.[2] Hence, patients presenting with PKC, particularly those who live in areas where TB is endemic, should be thoroughly investigated for the presence of TB infection. This evidence concerns the gene PRRT2 and bacterial infectious disease.