As emphasized, although not specifically investigated in the glaucoma rats, the recently described activation of the Src-Caveolin-1-eNOS pathway [103,104] and interaction with several molecular pathways [103,104,107,108,109,110,111,112,113,114,115] may be important for maintaining vasomotor tone, and thereby essential for prompt therapeutic effect in glaucoma rats. The gene discussed is SRC; the disease is glaucoma.