CHANGES IN BLOOD AND INTRAOCULAR PRESSURE ON DIFFERENT STEPS OF CATARACT PHACOEMULSIFICATION

Abstract

The main goal of the study is to evaluate how intraocular pressure (IOP) and statistically significant changes in systolic and diastolic pressure might influence the rate of complications of phaco procedure. Non-randomized open study. The group consisted of 285 patients, median age was 72±4.2 years The patients were observed all over the course of surgery. All patients received standard post-surgery treatment. The operations were conducted by one and the same surgeon, using one and the same medications and equipment. Key assessment parameters: IOP before, during and after the surgery, cataract, blood pressure, phacoemulsification. Conclusion. Both IOP and mean ocular perfusion pressure (MOPP) measured during the phaco procedure are different on the main steps of surgery. Spikes of high IOP during operation may jeopardize the intraocular blood flow due to decreased inflow of blood in the different ocular structures - optic nerve, retina and choroid. At the same time, there was high coincidence rate between raised values of systolic and diastolic BP, sharp rise of IOP and undesirable intraoperative complications such as: shallowing of anterior chamber, herniation of iris through incision site, stromal corneal edema frequently leaded to necessity of surgery postpone. All above mentioned are negatively influencing the visual outcomes of phacoemulsification and shows evidence in favor of accurate drug induced normalization of blood pressure and IOP preoperatively.