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Photograph standards and diagram for clinical scoring of corneal and conjunctival staining, with fewer modifications. Corneal staining standards; (A, B) and (C) each are 1 point; (D) and (E) each are 2 points; (F) and (G) each are 3 points. (H) Diagram: fluorescein staining was recorded in upper, middle and lower corneal regions; and superior, inferior, nasal, and temporal conjunctival regions.
