Saratov JOURNAL of Medical and Scientific Research

S. Fedorov Eye Microsurgery Federal State Institution, the Volgograd Branch

Efect of FemtoLASIK on the condition of accomodation and vis-coelastic properties of the cornea in patients with myopic refraction

Year: 2019, volume 15 Issue: №2 Pages: 555-559
Heading: Ophtalmology Article type: Original article
Authors: Fokin V.P., Solodkova E.G., Kuznetsova O.S., Balalin S.V.
Organization: S. Fedorov Eye Microsurgery Federal State Institution, the Volgograd Branch
Summary:

The purpose is to study the efect of FemtoLASIK operation on the state of accommodation, intraocular pressure and viscoelastic properties of the cornea in patients with myopic refraction. Material and Methods. Examined 84 patients (84 eyes) with myopia degrees before and after the operation Femtolasik. Results. In patients with mild myopia after Femtolasik, there was a decrease in the coefcient of accommodation microfuctuation (CAM) by 3.6 % and an increase in the coefcient of accommodation response (CAR) by 28.6 %, in patients with moderate myopia there was a decrease in the values of CAM to 11.1 % and an increase in CAR to 30 %, in patients with myopia of high degree of CAM increased by 14.4 %, and CAR 34 %, respectively. The decrease in the values of corneal-compensated intraocular pressure (IОPcc) was statistically signifcant. In the frst group decrease IОPcc amounted to 17.1 % in the second group 17.3 %, in the third of 25.8 %. Conclusion. An improvement in the state of accommodation is observed against the background of a decrease in the indicators of corneal- compensated intraocular pressure after performing the operation FemtoLASIK.

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Revisiting the question on the role of trabeculocleaning in surgical treatment of glaucoma with concomitant cataract and pseudoexfoliation syndrome

Year: 2019, volume 15 Issue: №2 Pages: 451-456
Heading: Ophtalmology Article type: Original article
Authors: Dzhashi B.G., Balalin S.V.
Organization: S. Fedorov Eye Microsurgery Federal State Institution, the Volgograd Branch
Summary:

Trabeculocleaning (TC) in the cataract extraction process is the procedure of debris aspiration from the drainage angle, one of the components inducing hypotensive efect after phacosurgery. When being preceded with selective laser trabeculoplasty (SLT) at suprathreshold values which provides a pigment granules' splatter, the described procedure makes it possible to clean the anterior chamber angle (ACA) of the released trabecular debris including pseudo-exfoliation material and pigment granules. Purpose: to study the efciency of trabeculocleaning performed in course of femto-laser assisted cataract surgery (FLACS), with a preliminary suprathreshold SLT. Material and Methods. The study included 26 patients (32 eyes) with a complicated cataract and primary open angle glaucoma with concomitant pseudoexfoliation syndrome. All patients underwent a suprathreshold SLT preceding FLACS and hydrodynamic tra-beculocleaning, in course of which trabecular debris were removed with the help of aspiration-irrigation tips. Results. One month postoperatively mean IOP value decreased by 9.5 mm Hg from initial values (40.95 %), the outfow facility coefcient improved to 0.21±0.002 mm3 / mm Hg*min (t=14.3; p<0.001). In 24 cases (77 %) IOP was compensated without application of antihypertensive drugs, in 7 cases (22.4 %) it reduced under medication. Conclusion. Hydrodynamic trabeculocleaning in course of FLACS with preliminary suprathreshold SLT ensures ACA detersion from trabecular debris: pseudoexfoliation material and pigment granules, therefore aiding to preserve and activate natural pathways to the outfow of intraocular fuid.

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