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. 2014 Apr 1;9(4):e82315. doi: 10.1371/journal.pone.0082315

Figure 4. The effects of unilateral injection of the δ opioid receptor agonist, DPDPE. into the ARC on intraocular pressure for the ipsilateral eye (a) and the contralateral eye (b).

Figure 4

The error-bar (mean ± SE) of each group was located at time points of 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 and 60 minutes. A slight separation was made for error-bars at the same time point to avoid overlapping. I, control group; IV-1, 2 µmol/µg DPDPE group; IV-2, 4 µmol/µl DPDPE group; IV-3, subconjunctival naloxone+2 µmol/µg DPDPE group; IV-4, subconjunctival saline+2 µmol/µg DPDPE group.