Abnormal conjunctiva morphology Conjunctival papillae 2017-01-13T20:21:47Z Bumps under the upper eyelid Raised tissue masses located on the palpebral conjunctiva with a central vessel. Papillae are created by a focal infiltration of inflammatory cells. Papillae may be observed with papillary conjunctivitis. The inflammatory cells in the papillae may differ according to the cause. For instance, eosinophils predominate in allergic conditions and neutrophils in bacterial disease. Tarsal papillae