CO₂ Laser-Assisted Deep Sclerectomy Surgery Compared with Trabeculectomy in Primary Open-Angle Glaucoma: Two-Year Results

Table 3

Changes in IOP (mmHg) and number of medications (n) in two groups before and after the surgery.

Time

Time effect

Group effect

Time  Group

Preoperation

After 1 wk

After 1 mo

After 3 mo

After 6 mo

After 12 mo

After 24 mo

F

F

F

IOP

CLASS

36.43 ± 6.62

11.94 ± 3.09

13.97 ± 3.33

14.83 ± 3.68

15.10 ± 3.38

15.24 ± 3.37

15.38 ± 3.74

Trab

37.87 ± 5.74

12.87 ± 3.11

15.21 ± 2.75

15.74 ± 2.47

15.83 ± 2.69

15.93 ± 3.36

16.34 ± 3.25

360.11

<0.001

0.28

0.42

0.08

0.99

Medications

CLASS

3.57 ± 1.19

—

—

0.83 ± 1.17

1.03 ± 1.32

1.24 ± 1.50

1.31 ± 1.54

Trab

3.60 ± 0.99

—

—

0.85 ± 0.98

1.11 ± 1.23

1.28 ± 1.26

1.30 ± 1.32

108.11

<0.001

0.047

0.830

0.048

0.981

IOP: intraocular pressure. Repeated-measures ANOVA was used and the Mauchly sphericity test , so the Greenhouse–Geisser estimation was conducted to calibrate the results.