Table 2 Mean IOP (mm Hg) preceding the WDT and at each timepoint (15, 30, and 45 minutes) after the WDT for the medical compared with the surgical groups
Trabeculectomy, N  =  20 (SD)DSCI, N  =  20 (SD)Latanoprost, N  =  20 (SD)p Value*
IOP pre-WDT10.1 (3.8)13.8 (3.3)15.9 (2.0)<0.05
WDT 15 minutes11.6 (4.5)16.5 (3.9)19.8 (2.8)<0.05
WDT 30 minutes12.5 (4.4)17.6 (3.6)21.1 (2.9)<0.05
WDT 45 minutes12.2 (5.1)16.9 (4.2)20.6 (2.8)<0.05
WDT IOP fluctuation†+2.4+3.8+5.2<0.05

  • DSCI, deep sclerectomy with collagen implant; IOP, intraocular pressure; WDT, water-drinking provocative test.

  • *Analysis of variance.

  • †The difference in IOP between the peak of the three measurements after the WDT and IOP immediately before the WDT.