• chronic
  • Superior limbic keratoconjunctivitis (SLK) is a chronic and recurrent eye disease which affects the superior bulbar conjunctiva (the clear layer that covers the eyeball, over the sclera ) and tarsal conjunctiva (the clear layer that lines the eyelids), as well as the superior limbic aspect of the cornea (the area above the cornea ). (nih.gov)
  • treat
  • An allergic reaction can also be caused by prescription medication, particularly eye drops that are used to treat conditions like glaucoma . (wisegeekhealth.com)