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

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.

Intraocular pressure variation by pneumatic tonometer before and after phacoemulsification.

Objective: To evaluate the intraocular pressure variation before and after phacoemulsification through pneumatic tonometry in addition to correlating it with the age, gender, and preoperative intraocular pressure of the patients evaluated.

Methods: This is a cross-sectional observational study. Inclusion criteria were older than 18 years, deep anterior chamber visualized by the slit lamp and estimation of open angle using the Van Herick technique, intraocular pressure less than 21 mmHg, without surgical complications, and without any ocular disease.

Alterations in the corneal topography after pars plana vitrectomy with the standard system of 20-gauge and the 25-gauge transconjunctival sutureless vitrectomy.

Background: To determine the alterations in the corneal topography after pars planavitrectomy with the system of 20- and 25-gauge.

Methods: A total of 29 patients with vitreous hemorrhage. The first group (17 patients) had to undergo a pars planavitrectomy with the 20-gauge system, whereas the second (12 patients) had the pars planavitrectomy with the 25-gauge system.