Figure 2. Percent of live trabecular meshwork (TM) cells after a 25 min exposure to various commercially available prostaglandin analogs (diluted 1:10 in serum-free media). The number of live cells was normalized to the number of live cells in BSS-treated controls. Data are reported as the mean±standard deviation of n=6 replicates. *=p<0.05 versus BSS control; †=p<0.05 versus travoprost/timolol + PQ; ‡=p<0.05 versus BAK alone.