<prompt> Immune ring is a feature of ?Interstitial keratitisFungal corneal ulcerBacterial corneal ulcerHerpes simplex keratitis  <response>: Ans. is b i.e., Fungal corneal ulcer Clinical features of fungal mycotic corneal ulcer Symptoms are similar to bacterial corneal ulcers but in general they are less marked than the equal sized bacterial ulcer. On the other hand signs are very prominent, i.e. signs are more prominent than symptoms. Following signs can be seen : - Greyish-white dry looking ulcer with the elevated rolled out feathery hyphate margins. Feathery finger like extension into surrounding stroma under intact epithelium. A sterile immune ring yellow line of Wesseley. Multiple small satellite lesions. Non-sterile infected hypopyon Pseudohypopyon. Perforation is rare and corneal vascularization is conspicuously absent. 