Purpose. To evaluate the clinical and functional results after cataract phacoemulsification with implantation of an intraocular lens at reduced intraoperative intraocular pressure, adapted vacuum and aspiration. Material and methods. 12 patients (24 eyes) with immature cataracts without concomitant eye pathology were included in the study. The age of patients was from 62 to 68 years. Patients were divided into 2 groups depending on intraoperative pressure parameters. The main group included 12 eyes with immature cataracts, which underwent phacoemulsification of the cataract with a reduced intraoperative intraocular pressure. 12 paired eyes, which underwent phacoemulsification of the cataract with IOL implantation with standard settings were included in the second (retrospective) group. Postoperative examination included checking visual acuity, tonometry, endothelial microscopy. The observation period was 1 day, 1 and 6 months. Results. Phacoemulsification of the cataract in both groups was performed without complications; operations were completed with intracapsular IOL implantation. It was noted that CDE of the main group was 2.79±0.64, and it was 2.9±0.82 in the control group during analyzing intraoperative indicators. The main differences were noted in indicators of the volume of fluid aspiration: 65.4±1.21 cm3 of the main group and 74.9±2.45 cm3 of the control group. The indicator of the volume of fluid aspiration of the control group was 14% more than that of the main group. After 6 months, the number of endothelial cells of the main group ranged from 1625 to 1935 cells/mm2, in the control group the number of endothelial cells ranged from 938 to 1745 cells/mm2. Conclusions. Performing phacoemulsification of cataract at close to normotonus values of intraoperative pressure parameters, as well as adapted indicators of irrigation-aspiration and vacuum, allows to reduce the negative effect on the corneal endothelium, reducing the percentage of complications and the postoperative period of rehabilitation of patients. Key words: cataract phacoemulsification, intraoperative intraocular pressure, reduced indicators.

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Groups were controls, 10 patients each (10 eyes) with fibrotic changes and thinning of the anterior capsule, respectively, where the power of femtolaser energy exposure was 80% (recommended by the manufacturer of the laser unit). In the first and second groups, in contrast to the control, the absence of tissue bridges was achieved in almost all cases. The carved disc stood out freely, without additional traction, leaving no burrs. These burrs cause radialization of the anterior capsule during manipulation during cataract surgery.As a result of the study, the optimal values of the power of femtolaser exposure were selected for anterior femtocapsulotomy in case of detection of fibrosis or thinning of the anterior lens capsule in case of swelling overmature cataract. groups were controls, 10 patients each (10 eyes) with fibrotic changes and thinning of the anterior capsule, respectively, where the power of femtolaser energy exposure was 80% (recommended by the manufacturer of the laser unit). In the first and second groups, in contrast to the control, the absence of tissue bridges was achieved in almost all cases. The carved disc stood out freely, without additional traction, leaving no burrs. These burrs cause radialization of the anterior capsule during manipulation during cataract surgery.As a result of the study, the optimal values of the power of femtolaser exposure were selected for anterior femtocapsulotomy in case of detection of fibrosis or thinning of the anterior lens capsule in case of swelling overmature cataract.

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