Incipient pannus as a sign of the primary corneal infection of trachoma and as an important criterion for the early diagnosis of the disease.
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D003141:Communicable Diseases; D003315:Cornea; D016510:Corneal Neovascularization; D042241:Early Diagnosis; D006801:Humans; D007634:Keratitis; D014141:Trachoma / Q000175:diagnosis*