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. 1998 Jul;82(7):758–762. doi: 10.1136/bjo.82.7.758

Figure 2  .

Figure 2  

Ocular pulse amplitude (OPA) in dorzolamide (D) and vehicle (V) treated eyes of high tension primary open angle glaucoma (HTP) patients (n = 12) and non-glaucomatous controls (CTL, n = 16) before and after drug or vehicle application. Bars represent mean (SEM). *Indicates p<0.05 compared with measurements before drug or vehicle application using the Student's two tailed, paired t test.