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  • Title: Intraocular pressure variation by pneumatic tonometer before and after phacoemulsification.
    Author: Rodrigues FW, Silva CM, Modesto DC, de Oliveira AW, da Silva RE.
    Journal: Eur J Ophthalmol; 2018 Jul; 28(4):393-397. PubMed ID: 29973072.
    Abstract:
    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. The intraocular pressure was measured by the pneumatic tonometer. The intraocular pressure assessment was performed at the last consultation before phacoemulsification surgery and 30 days after. RESULTS: A sample of 182 eyes was used. The mean age was 68.41 ± 10.84 years. Of the patient, 65% were females and 35% were males. The mean intraocular pressure in the preoperative period was 16.0 mmHg (±3.3 mmHg) and the mean intraocular pressure in the postoperative period was 13.44 mmHg (±3.31 mmHg). There was no correlation between intraocular pressure variations in both eyes (age-matched open angle) and age. There was a statistically significant correlation between the preoperative intraocular pressure value and the intraocular pressure changes in the postoperative period. In the comparison of the intraocular pressure variation between the genders, the female gender presented a statistically significant negative variation. CONCLUSION: We conclude that the cataract surgery is related to the reduction of intraocular pressure in the postoperative period and this reduction is more influenced by its preoperative value. Other studies of high epidemiological impact are needed, which may corroborate that the cataract surgery could directly influence intraocular pressure variation.
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