Figure 1. The comparison of the major tear protein components between allergic conjunctivitis patients and normal controls using SBTI as an internal standard. In 15% SDS–PAGE gel,a 10 μl sample solution containing 400 ng SBTI and 0.21 μl tears from allergic conjunctivitis patients (A) or normal controls (B) was loaded. C: The comparison of tear protein profiles from allergic conjunctivitis patients and normal controls (solid line, tears collected from normal controls; dotted line, tears collected from allergic conjunctivitis patients). Tear samples were collected by Schirmer test paper without anesthesia. (B1, Band1; B2, Band2; B3, Band3; and, so forth).