text: <unk>  must be differentiated from blepharitis, keratitis, and scleritis.<unk>  symptoms and signs are relatively non-specific. Even after eye examination, laboratory tests are often necessary to determine the underlying pathophysiology with certainty.
option_0: Conjunctivitis differential diagnosis
option_1: Impetigo differential diagnosis
option_2: Blepharitis differential diagnosis
option_3: Rhinitis differential diagnosis
option_4: Atopic dermatitis differential diagnosis
option_5: Byssinosis differential diagnosis
option_6: Vertigo differential diagnosis
option_7: Acne vulgaris differential diagnosis