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) .272a
Postoperative
  1 day 20 17.7 ± 7.3 17* 12.8 ± 5.3 .029a
  7 days 20 13.6 ± 4.8 17* 14.5 ± 3.9 .525a
  4 weeks 20 12.5 ± 6.1 17* 14.3 ± 4.2 .301a
  3 months 20 13.9 ± 6.4 17* 13.5 ± 3.9 .832a
  6 months 20 11.9 ± 3.9 17* 14.2 ± 4.6 .111a
  12 months 19~ 11.7 ± 3.5 15+ 12.6 ± 2.1 .357a

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

Open Data