Pre-operative and post-operative intraocular pressure and visual acuity.

Table 2: Pre-operative and post-operative intraocular pressure and visual acuity.

Intraocular pressure and visual acuity
	Maximum Pressure	Pre-operative Pressure	Estimated tube opening	IOP after tube pening	Pre-op Visual Acuity	Final Visual Acuity
Case 1	39	14	Day 33	6	20/30	20/70
Case 2	27	27	Day 41	8	20/200	20/70*
Case 3	42	20	< Day 30	4	20/250	20/400
Case 4	70	38	< Day 30	11	20/80	20/80
Case 5	23	10	< Day 41	4	20/200	CF at 3*
Case 6	48	20	< Day 34	8	20/400	20/400
Case 7	47	14	Day 36	7	20/60	20/25*
Case 8	17	12	< Day 36	15	20/20	20/25

*patient had surgery combined with cataract extraction with posterior chamber intraocular lens