
Phacotrabeculectomy

Phacocanaloplasty

P value
^{‡}


n

IOP (mmHg)

P value
^{†}

n

IOP (mmHg)

P value
^{†}


Baseline

20

30.0 ± 5.3

<.0001
^{b}
(n = 19)

19

28.3 ± 4.1

<.0001
^{b}
(n = 15)

.272
^{a}

Postoperative
     
1 day

20

17.7 ± 7.3
 
17*

12.8 ± 5.3
 
.029
^{a}

7 days

20

13.6 ± 4.8
 
17*

14.5 ± 3.9
 
.525
^{a}

4 weeks

20

12.5 ± 6.1
 
17*

14.3 ± 4.2
 
.301
^{a}

3 months

20

13.9 ± 6.4
 
17*

13.5 ± 3.9
 
.832
^{a}

6 months

20

11.9 ± 3.9
 
17*

14.2 ± 4.6
 
.111
^{a}

12 months

19^{~}

11.7 ± 3.5
 
15^{+}

12.6 ± 2.1
 
.357
^{a}

 Values are means ± SD (standard deviation).

n sample size, IOP intraocular pressure.

^{†} during followup; ^{‡} phacotrabeculectomy versus phacocanaloplasty.
 * Two patients developed filtering blebs after canaloplasty and were therefore excluded.

^{+} Two patients needed cyclodestruction to reach target IOP and were therefore excluded.

^{~} One patient underwent cyclophotocoagulation to lower IOP and was therefore excluded.

^{a} Student´s ttest for independent samples with normal distribution.

^{b} oneway repeated measures ANOVA.