Introduction:

initial treatment for the primary angle closure is aimed to modify the anterior ocular segment and to stabilize the disease.

Objective:

to assess if there are differences between patients treated with phacoemulsification or peripheral laser iridotomy, in terms of improvement of the anatomical parameters of the anterior ocular segment.

Materials and methods:

a quasi-experimental study was led with a historic control group in the province of Pinar del Rio, between January 2011 and January 2020. It included 196 eyes of 144 patients with primary angular closure, treated with phacoemulsification or laser peripheral iridotomy. The statistical analysis was carried out using SPSS program.

Results:

in the preoperative period there were not significant differences for the amplitude of the anterior chamber. In the postoperative there were very significant differences (p < 0.001) between the two surgical procedures for both ayes. In angular amplitude there were also very significant differences (p < 0.001) between preoperative y postoperative periods of both groups. The presence of peripheral anterior synechia was scarce, without differences between baseline values, and after two months in both eyes for each group. The evidence of angular closure, at the end of the period, between the phacoemulsification group and the iridotomy one was 4.9 % vs. 23.2 % (p = 0.029) in the right eye, and 2.7 % vs. 29.0 % (p = 0.003) in the left.

Conclusions:

both, crystalline lens extraction and laser peripheral iridotomy improve the anatomical parameters of the anterior segment, although the results are greater in ayes treated with phacoemulsification.

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