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

Abstract

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

Keywords

• Intraocular pressure
• Pneumatic Tonometer
• Cataract
• Glaucoma