Saratov JOURNAL of Medical and Scientific Research

Cheboksary Branch of S. Fedorov Eye Microsurgery Federal State Institution

Preliminary results of modifed cryogenic scleroplasty

Summary:

Purpose: to assess preliminary results of modifed cryogenic scleroplasty efcacy in patients with progressing myopia. Material and Methods. Modifed cryogenic scleroplasty was developed by us in order to decrease the risk of deformation, torsion and displacement of scleroplastic material during its implantation. 38 children (72 eyes) aged 7–17 years with diagnosis of acquired progressing medium and high myopia with documented annual gradient of progressing more than 1 D were operated. 35 children (64 eyes) were the control group. They underwent standard scleroplasty by Pivovarov — Pristavko method. Results. No complications and adverse reactions to the transplantation material were observed during modifed cryogenic scleroplasty. Due to exposition in liquid nitrogen solution transplant keeps form and is not deformed during immersion and its partial location under the muscle. Stabilizing efect of the studied method (according to clinical refraction and axial length) is comparable to other types of scleroplasty. Conclusion. The developed technology of surgical treatment of progressing myopia is characterized by technological simplicity, convenience in material implantation, exclusion of transplant deformation and torsion on episclera surface, high stabilizing efect during the frst year after the surgery.

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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.

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