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Table 1 Pre and post-operative IOP, with percentage reduction, at 12, 24 and 36 months

From: Effect of primary Phacoviscocanalostomy/ Viscocanalostomy on intraocular pressure of normal tension glaucoma patients: 3-year results

Time

Number of eyes (loss to follow-up)

Mean IOP (SD) (mmHg)

Percentage IOP reduction (%)

Number of eyes received laser goniopuncture (LGP)

Number of eyes receiving antiglaucoma drops

Pre-op

94 (0)

17.75 (±2.19)

N/A

N/A

N/A

12 months

82 (12)

13.34 (±2.35)

24.8%

9 (10%)

4

24 months

79 (15)

13.13 (±2.10)

26.0%

11 (12%)

16

36 months

75 (19)

13.41 (±2.22)

24.5%

17 (18%)

20