Table 4.

Comparison of IOP between preeclampsia cases and controls at presentation, 24 hours after delivery and at postnatal visit

Variable	Cases (n=71) Mean (SD)	Controls (n=72) Mean (SD)	t-test	P value
At presentation
IOP in right eye (mm Hg)	14.7 (4.4)	12.7 (3.1)	3.21	0.002
IOP in left eye (mm Hg)	14.6 (3.9)	12.7 (3.1)	3.19	0.002
24 hours after delivery
IOP in right eye (mm Hg)	14.2 (2.8)	12.7 (2.5)	3.21	0.002
IOP in left eye (mm Hg)	14.0 (3.0)	12.8 (2.5)	2.68	0.008
At postnatal visit
IOP in left eye (mm Hg)	13.9 (2.4)	12.8 (2.3)	2.77	0.006
IOP in left eye (mm Hg)	13.2 (2.1)	12.8 (2.4)	1.25	0.213

IOP, intraocular pressure.