Figure 2  .

Corneal scarring in T cell deficient mice. Corneal scarring was measured 28 days after ocular challenge as described in Materials and method in the mice shown in Figure 1 that survived ocular challenge. (A) Corneal scarring in CD8+ deficient mice; (B) corneal scarring in CD4+ deficient mice. For each bar, the corneal scarring (y axis) represents the average from 16 eyes (CD8−/− mice), 14 eyes (CD8+ depleted mice), 20 eyes (C57BL/6 mice), 16 eyes (CD4−/− mice), 18 eyes (CD4+ depleted mice), and 20 eyes (C57BL/6 mice) (SEM). *Similar to each other and significantly different from other groups (p<0.001, Student's t test).