The difference in mRNA levels compared with the difference in creep rate. Shown is the difference in the average mRNA copy number for (A) Type I collagen (α1 chain), (B) decorin core protein, (C) MMP-2, (D) MMP-3, and (E) TIMP-1 in the deprived and control eyes from Figure 3. As computed, this difference has no associated error bars. *P < 0.05, as shown in Figure 3. (F) Difference in the average creep rate in the deprived and control eyes from Siegwart and Norton20 in which the animals received similar periods of MD and MD/recovery.