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Comparison of variation of intraocular pressure in noncontact tonometry in patients subjected to phacoemulsification and trabeculectomy with phacoemulsification

Authors Rodrigues FW, Pucci HF, Cintra LO, Silva RE

Received 8 June 2018

Accepted for publication 7 August 2018

Published 23 October 2018 Volume 2018:12 Pages 2157—2165

DOI https://doi.org/10.2147/OPTH.S176643

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser


Francisco Wellington Rodrigues,1 Henrique Ferreira Pucci,2 Lucas Oliveira Cintra,2 Rodrigo Egídio da Silva1

1VER Excellence in Ophthalmology, Goiânia, Goiás, Brazil; 2Department of Ophthalmology, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil

Objective: Evaluate the pattern of intraocular pressure (IOP) variations through the pneumatic tonometer, between two specific surgical techniques, and the possible variables that may influence the behavior of this pressure.
Methods: Retrospective cross-sectional study carried out through the review of electronic medical records of a private ophthalmological reference hospital in the city of Goiânia, Goiás, Brazil, from 2012 to 2016, comprising of a sample of 550 eyes. The analyzed variables were, age, gender, IOP, axis, pachymetry, anterior chamber depth, and axial length.
Results: In the end, the study consisted of 231 eyes, represented by 179 patients. Of these, 182 eyes were operated on by isolated cataract surgery, with a mean age of 72.0±9.5 years. The combined surgery represented a total of 49 eyes, 34 patients with a mean age of 71.9±8.14 years. There was statistical significance (P<0.05) in correlating the pre- and postoperative IOP values in the 24-hour, 7-, 15-day, and 12-month postoperative periods.
Conclusion: A standard of variation of IOP was found through the pneumatic tonometer in both surgical techniques, but a more significant reduction was observed in combined surgery than in isolated cataract surgery, and further studies with a greater epidemiological impact are required for confirmation of this conclusion.

Keywords: intraocular pressure, pneumatic tonometer, cataract, glaucoma

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