Change in intraocular pressure in the early period after cataract phacoemulsification

Purpose Described decrease of IOP after phaco is 2‐5 mm Hg . At the same time, in the early period after cataract extraction frequent increase in IOP is described. The purpose of our study was to analyse the dynamics of IOP after uncomplicated phacoemulcification Methods The study included 67 eyes of 66 patients who underwent uncomplicated phaco with foldable IOL implantation . All patients underwent tonography resulting tonographic IOP (Po) and ease outflow coeffitient (C) , a study of corneal ‐ compensated IOP (IOPcc) and Goldmann IOP (IOPg) with Ocular Response Analyzer. Which were repeated before surgery, the first two days , 2 weeks , 1 and 3 months after operation. Results Average Po before surgery was 15,67± 0,85 mm Hg, IOPcc 15,91 ±0,69 mm Hg and IOPg 14,51 ±0,78 mm Hg. On the first day after surgery IOPcc increased by 2,84 mm Hg, and IOPg by 1.53 mm Hg . Two weeks after surgery Po decreased from baseline by 3.45 mm Hg , IOPcc still increasing by 0.62 mm Hg , IOPg also further increased by 1.44 mm Hg .1 month after surgery Po virtually unchanged compared with data from 2 weeks , IOPcc returned to preoperative values , IOPg reduced compared with the preoperative figures by 1.0 mm Hg . Finally, after 3 months Po became lower then preoperative by 3.23 mm Hg , IOPcc reduced compared with preoperative by 1.51 mm Hg, and IOPg by 1.92 mm Hg Conclusion IOP rise after phaco begins on the first postoperative day , reaching a maximum in 2 weeks. Then towards the end of the first month after surgery IOP returns to preoperative values. IOP reduction 1,5‐ 2 mm Hg starts after decrease of postoperative reactive syndrome 1 month after surgery