<prompt> Topical antifungal agent used in keratomycosis is:Silver sulfadiazineNatamycinKetoconazoleFlucytosine  <response>: Fungal keratitis tends to occur after corneal injury involving plant material or in an agricultural setting, in eyes with chronic ocular surface disease, and increasingly in contact lens wearers. Signs: It is usually an indolent process, with the cornea characteristically having multiple stromal abscesses and relatively little epithelial loss. Intraocular infection is common. Investigations: Corneal scrapings should be cultured on media suitable for fungi whenever the history or corneal appearance is suggestive of fungal disease. Diagnosis is often delayed and treatment is difficult. Treatment: Natamycin 5, amphotericin 0.1-0.5, and voriconazole 1 are the most commonly used topical agents. Systemic imidazoles may be helpful. Corneal grafting is often required. Ref: Riordan-Eva P. 2013. Chapter 7. Disorders of the Eyes Lids. In M.A. Papadakis, S.J. McPhee, M.W. Rabow Eds, CURRENT Medical Diagnosis Treatment 2013. 