If keratitis is not good, it will cause repeated detachment of the corneal epithelium, epithelial edema, and even affect the corneal stroma, and if it affects the corneal stroma more deeply even after it gets better, the cornea will leave scars, especially in the pupil area scars in the visual area affect the light pathway will affect vision. Therefore, keratitis must be treated properly in the early stages, so that keratitis does not develop into corneal ulcers and scars are not formed in the pupil area, otherwise the prognosis for vision is very poor. The treatment of keratitis must determine what causes it and accurately determine the cause in order to choose the right eye drops or ointment for symptomatic treatment, early to control the inflammation in the surface layer, and try not to let it develop to the deep keratitis prognosis is good.