Saratov JOURNAL of Medical and Scientific Research

phacoemulsification of cataracts

Position of toric intraocular lens and rotational stability during cataract phacoemulsifca-tion in patients with astigmatism

Year: 2019, volume 15 Issue: №2 Pages: 506-510
Heading: Ophtalmology Article type: Original article
Authors: Kulikova I.L., Timofeyeva N.S.
Organization: Cheboksary Branch of S. Fedorov Eye Microsurgery Federal State Institution
Summary:

Purpose: to analyze the position of toric intraocular lens Acrys of IQ Toric in the vertical and horizontal plane and rotational stability during cataract phacoemulsifcation in patients with astigmatism. Material and Methods. The results of implantation of toric intraocular lens (TIOL) (Acrys of IQ Toric model) in 38 patients (38 eyes) after cataract phacoemulsifcation were studied. Parameters of rotational stability and the position of TIOLs (decentration and tilt) in the capsule bag relative to the vertical and horizontal plane 2 months after the operation were also studied. Results. Average values of uncorrected visual acuity were 0.8 in more than 50 % of cases. Values of decentration and tilt of the TIOL in the capsular bag did not exceed the clinically signifcant value and amounted to an average of 0.4±0.1 mm and 0.6±0.2° respectively in the horizontal plane, and 0.3±0.1 mm and 0.5±0.1° in the vertical plane. The average rotation angle of TIOL after 2 months of observation was 4.8±4.1°, with a maximum rotation angle of 19°. Correlation analysis revealed the presence of a statistically signifcant relationship of average force between the residual cylinder and the horizontal slope (r=0.52; p=0.02) and the residual cylinder and vertical decentralization (r=0.52; p=0.03). Conclusion. In most cases the parameters of TIOL position in the capsule bag (decentration and tilt) and rotational stability did not exceed clinical signifcance providing high functional results. The residual cylinder correlated with the angle of inclination and decentralization of the optical part of the intraocular lens.

AttachmentSize
2019_02-1_506-510.pdf433.27 KB

Effect of cataract phacoemulsification on the dynamics of intraocular pressure in patients with primary open-angle glaucoma

Year: 2018, volume 14 Issue: №4 Pages: 837-841
Heading: Ophtalmology Article type: Original article
Authors: Kolesnikov A.V., Kolesnikova M.A., Mironenko L.V., Baranova O.V., Tarasova N.S.
Organization: Ryazan State Medical University n.a. I.L.Pavlov, Regional Clinical Hospital n.a. N.A. Semashko
Summary:

Purpose: to assess the dynamics of intraocular pressure (IOP) after cataract phacoemulsification (CFE) with intraocular lens (IOL) implantation in patients with cataract in combination with primary open-angle glaucoma (POAG). Material and Methods. The subject of this study was the analysis of IOP after CFE in 65 patients (89 eyes) with cataract in combination with POAG. Among the examined patients, the initial stage of glaucoma was noted in 14.6% cases; developed stage in 55.1 % cases, far-reaching stage in 30.3% cases. IOP was compensated in 84.5% cases, and sub-compensated in hypotensive mode in 15.5% cases. The observation period was from 1 month up to 2 years. Results. In dependence of IOP after surgery, patients were divided into three groups: IOP exactly like in preoperative level, below and above the initial IOP In most cases, at all times IOP corresponded to the preoperative level and after 2 years it was noted in 77.4%. The number of patients with ophthalmotonus below the baseline (1-8 mm) decreased from 63.2% in 1-3 months after surgery to 16.1 % in two years. An increase in ophthalmotonus (by 3-4 mm) was noted in 27% of cases, however, a persistent increase in IOP, which required correction, was 7.9% at stage III of glaucoma, and in the rest of the eyes IOP normalized by itself. Conclusion. According to the results of the study, it can be concluded that there is an ambiguous effect of CFE with IOL implantation on IOP in patients with cataract in combination with POAG, which necessitates further study.

AttachmentSize
2018_4-2_837-841.pdf279.08 KB

Development of ophthalmic training simulator for cataract surgery

Year: 2017, volume 13 Issue: №2 Pages: 417-420
Heading: Ophtalmology Article type: Original article
Authors: Kumova S.V., Lunev I.A., Gasparyan E.A., Virsta A.M., Batishcheva Yu.S., Kamenskikh T.G., Dolinina O.N.
Organization: Saratov State Medical University, Saratov state university, Yuri Gagarin State Technical University of Saratov
Summary:

Purpose: development of interactive simulator for the development of phacoemulsification. Material and Methods. Material and methods: the Software developed by the authors ophthalmic virtual simulator has several modules that can also be complemented by depending on put before the students the task. Testing the virtual simulator "Phacoemulsification" held at the Department of ophthalmology with the participation of 20 interns and 18 residents. Results. The development of residents and interns of ophthalmological profile of the theoretical foundations of cataract surgery using developed by the authors of the publication virtual interactive simulator demonstrated the effectiveness of this technique in comparison with passive viewing of video recording operations and the familiarity with the course of phacoemulsification in the operating room. Conclusion. The application of the developed simulator with the purpose of optimization of educational process of residents and interns of ophthalmic profile is a very effective tool in the world today.

AttachmentSize
2017_02-1_417-420.pdf501.59 KB