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Revista Habanera de Ciencias Médicas

versão On-line ISSN 1729-519X

Resumo

PEREZ GONZALEZ, Henry; HERNANDEZ SILVA, Juan Raúl; BARBEITO, Teddy Osmin Tamargo  e  CONCHA, Yanet Garcia. Preoperative intraocular pressure for the control of primary angle closure treated with clear lens extraction. Rev haban cienc méd [online]. 2021, vol.20, n.4, e3810.  Epub 10-Ago-2021. ISSN 1729-519X.

Introduction:

Clear lens extraction is considered in patients older than 50 years with primary angle closure and intraocular pressure greater than or equal to 30 mm Hg or damage due to glaucoma. The results are unknown in eyes with a moderate elevation of intraocular pressure.

Objective:

To evaluate the influence of preoperative intraocular pressure in the control of the primary angle closure treated with clear lens extraction.

Material and Methods:

A pre-experimental study was conducted between January 2013 and January 2020. It included a total of 78 eyes of 78 patients with primary angle closure treated with clear lens extraction. They were divided into two groups according to preoperative intraocular pressure. For statistical analysis, Chi-square test, Fisher's exact probability test, and t test were used for independent samples and analysis of variance with repeated measurements; with 95 % statistical significance.

Results:

There were significant differences in axial length (p=0,003), lens thickness (p<0,001) and central corneal thickness (p=0,016) between both groups. Intraocular pressure and the number of eye drops varied very significantly (p<0,001) between the pre-and postoperative periods and between both groups at the different moments analyzed. In group A, 94,4 % of the eyes showed absolute postoperative control, which remained unchanged over time. In group B, most eyes had relative control. There were very significant differences (p<0,001) between both groups.

Conclusions:

Preoperative intraocular pressure influences the control of primary angle closure treated with clear lens extraction; previous values less than 30 mm Hg favor better postoperative control.

Palavras-chave : Intraocular pressure; Primary Angle Closure; Phacoemulsification; Lens, Crystalline; Anterior Chamber; Ophthalmic Solutions.

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