Episcleritis different diagnoses Episcleritis Conjunctivitis scleritis Congestion Localized Diffused, palpebral conjunctiva affected Congestion Not affect sclera Affect and edema sclera Nodules movable unmovabl e Adrenaline Disappear Disappear Not disappear Episcleritis Episcleritis Conjunctivitis scleritis Congestion Localized Diffused, palpebral conjunctiva affected Congestion and edema Not affect sclera Affect sclera Nodules movable unmovabl e Adrenaline Disappear Disappear Not disappear different diagnoses