https://www.selleckchem.com/products/cct251545.html This article presents two cases of contact lens wearers with keratitis caused by Paecilomyces lilacinus. The special feature of these cases was the superficial manifestation of the infection in the upper stromal layer without infiltration into deeper layers. The pathogen was identified following epithelial debridement and corneal scraping. In both cases the fungal keratitis could be successfully managed by intensive topical treatment with voriconazole. Except for an epithelial debridement with EDTA chelation and an amniotic membrane transplantation in one case, no further surgical interventions were necessary.The auditory system consists of the ear located in the periphery, in which a conversion of the sound into an electrical signal takes place, and neurons, which perform central processing based on action potentials. The most important anatomical and functional features of the auditory system are explained. For this purpose, a selective literature search was carried out in the databases PubMed (also in the Europe PubMed Central), Psychline, Google Scholar, Cochrane Library and Web of Science. Additional information was obtained from relevant books or websites in the fields of (neuro)anatomy, (neuro)physiology, (neuro)ophthalmology and (neuro)otology, among others with the keywords Hörbahn, auditory system, auditory pathway, receptors, spatial hearing and auditory cognition.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 foc