An Overview of Fungal Keratitis and Case Report on Trichophyton Keratitis

Due to impaired defensive mechanisms caused by injuries or little epithelial defects , different types of pathogens or environmental influences might induce corneal inflammation (keratitis). The form of corneal inflammation called superficial keratitis involves just the corneal surface (epithelium). If the inflammation involves corneal stroma it is called stromal or interstitial keratitis. Keratitis might be mild, moderate or severe and may involve other parts of the eye. It might be acute or chronic, infectious or noninfectious. All conditions that lead to epithelial break are possible risk factors to induce keratitis. Microorganisms cannot invade an intact, healthy cornea and infection rarely occurs in the normal eye because the human cornea is naturally resistant to infection.