## Table 2 |
|||||||

Intraocular pressure results |
|||||||

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 follow-up; ^{‡} 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 *t*-test for independent samples with normal distribution.

^{b} one-way repeated measures ANOVA.

Matlach * et al.*

Matlach * et al.* *BMC Ophthalmology* 2013 **13**:1 doi:10.1186/1471-2415-13-1