Saratov JOURNAL of Medical and Scientific Research

S. Fedorov Eye Microsurgery Federal State Institution

Clinical and functional assessment of accommodation disorders at ametropy

Year: 2020, volume 16 Issue: №1 Pages: 227-231
Heading: Ophtalmology Article type: Original article
Authors: Kuznetsova O.S., Solodkova E.G., Fokin V.P., Balalin S.V.
Organization: S. Fedorov Eye Microsurgery Federal State Institution
Summary:

The purpose of the study is to evaluate major accommodation disorders in patients with ametropy. Material and Methods. Analysis of the accommodation and hydrodynamics eye state was carried out on 235 people (235 eyes) with myopia (1 group) and 52 people (52 eyes) with hyperopia. The age of patients ranged from 18 to 35 years. Results. Accommodation disorders were observed in 82% of myopia cases; they were expressed through weakness of accommodation (49.2%), habitual excess tension of accommodation (HETA) (18.6%), and combined disorders (14.2%). Accommodation disorders were observed in 86.5% of hyperopia cases, which were expressed through accommodation weakness (51.9%), combined disorders (23.1 %), and HETA(11.5%). At myopia, ophthalmic hypertension was observed in 16.4% of cases with HETA and combined accommodation disorders. Ophthalmic hypertension was detected in 5.4% of hyperopia cases against the background of accommodation weakness. Conclusion. HETA and weakness of accommodation are more often observed with an increase in myopia degree, the rigidity values of the corneoscleral membrane and corneal hysteresis decrease. Weakness of accommodation is more often observed with an increase in the hyperopia degree, the rigidity values of the corneoscleral membrane and corneal hysteresis increase.

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Polymer micro-shunt Reper-NN in combined glaucoma and cataract surgery

Year: 2020, volume 16 Issue: №1 Pages: 223-227
Heading: Ophtalmology Article type: Original article
Authors: Kolpakova О.А., Fabrikantov O.L., Nikolashin S.I.
Organization: Tambov State University n. a. G.R. Derzhavin, S. Fedorov Eye Microsurgery Federal State Institution
Summary:

The purpose of the study is to estimate the efficacy of polymer micro-shunt Reper-NN in combined glaucoma and cataract surgery. Material and Methods. The examination group consisted of 34 patients (34 eyes) with cataract and glaucoma of different stages. All patients were divided into 2 groups: 1)16 patients underwent micro-shunt Reper-NN implantation with simultaneous phacoemulsification with IOL implantation; 2) 18 patients underwent micro-invasive non-penetrating deep sclerectomy with simultaneous phacoemulsification with IOL implantation. The diagnosis was made based on the anamnesis and data of objective and instrumental examinations. Preoperatively all patients underwent examination of visual acuity, intraocular pressure, perimetry, ophthalmometry, ultrasound scanning. Results. Intraocular pressure was normalized in all patients. Conclusion. Combined cataract and glaucoma surgery using polymer micro-shunt Reper-NN is an effective and safe method of treating open-angle glaucoma and cataract.

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Clinical effectiveness of prophylactic treatment of women at risk for the formation of vascular retinal pathology after preeclampsia

Year: 2020, volume 16 Issue: №1 Pages: 220-223
Heading: Ophtalmology Article type: Original article
Authors: Kolenko O.V., Sorokin E.L., Fil A.A., Khodzhaev N.S., Chizhova G.V.
Organization: S. Fedorov Eye Microsurgery Federal State Institution, Postgraduate Institute for Public Health Workers, Far Eastern Federal University
Summary:

The purpose of the study is to investigate the clinical effectiveness of prophylactic treatment of women who have previously undergone preeclampsia and are a part of the risk group for the formation of vascular retinal pathology. Material and Methods. The main group consisted of 40 women aged 24 to 43. The selection criterion was presence of a risk of vascular retinal pathology formation. Women of the main group were prescribed periodic courses of preventive treatment for a period of time of 3-4.5 years. The comparison group consisted of 51 women, who underwent preeclampsia, and also had a risk of forming vascular retinal pathology and did not receive preventive treatment. Results. Systematic conduct of preventive treatment courses with antiplatelet agents and antioxidants to women who have undergone preeclampsia and are at risk of vascular retinal pathology formation have been effective. Conclusion. Frequency of vascular retinal pathology formation in the main group decreased to 15% against 34% in the comparison group (p<0.05).

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OCT-study of the anterior lens capsule after cataract surgery accompanied by pseudoexfolia-tion syndrome

Year: 2020, volume 16 Issue: №1 Pages: 215-220
Heading: Ophtalmology Article type: Original article
Authors: Egorova Е.М., Dulidova V.V.
Organization: S. Fedorov Eye Microsurgery Federal State Institution
Summary:

The Purpose of the study is to evaluate the condition of the anterior capsule (AC) in patients with pseudoexfoliation syndrome (PEX) after implantation of intraocular lenses (IOL) of different designs. Material and Methods. Optical coherence tomography of the anterior segment was conducted in 58 patients (70 eyes) with PEX after phacoemulsification with implantation of various acrylic lOLs: planar (52 cases) and step-vaulted (18 cases). Results. Over the long-term period we revealed differences in the relationship of AC and IOL. in most cases of planar IOL implantation, the AC after polishing adjoined the IOL surface without changing its morphology. The epithelial metaplasia was noted after implantation of planar lOLs without peeling of AC. The free edge of the AC with unchanged epithelium was observed in all cases of implantation of step-vaulted lOLs. Conclusion. Polishing the anterior capsule after implantation of planar lOLs allows avoiding significant manifestations of contraction capsular syndrome. Implantation of step-vaulted lOLs excludes contact of the anterior capsule with the IOL surface; no manifestations of epithelial metaplasia were observed.

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Estimation of diagnostic value of optical coherence tomography angiography parameters in patients with diabetic retinopathy

Year: 2020, volume 16 Issue: №1 Pages: 210-215
Heading: Ophtalmology Article type: Original article
Authors: Goydin А.Р., Fabrikantov O.L., Pronichkina M.M., Misyurev D.M.
Organization: Tambov State University n.a. G.R. Derzhavin, S. Fedorov Eye Microsurgery Federal State Institution
Summary:

The purpose of the study is to estimate diagnostic value of optical coherence tomography angiography (OCT-angiography) parameters in patients with diabetic retinopathy. Material and Methods. The investigation included 102 patients with diabetes mellitustype II and different stages of diabetic retinopathy and 48 clinically healthy people. Apart from routine ophthalmological examination all patients underwent optical coherence tomography of the macular area. To estimate diagnostic value of OCT-angiography, we performed ROC-analysis of the most informative parameters. Results. The most significant differences in OCT-angiography data between patients with different stages diabetic retinopathy (groups I and II) and healthy people (control group) were noted for general vascular density in all sectors (Whole image) and parafoveal zone (Parafovea) of the superficial vascular plexus. The ROC-analysis showed high sensitivity and specificity of the same zones for control group and group I, as well as for groups I and II. Conclusion. The capillary network density for Parafovea in patients with diabetes mellitus is less than 52% and for Whole image it is less than 48.5%, which indicates the presence of non-proliferative and pre-proliferative retinopathy, while the reduction of Parafovea parameters lower than 43.6% and Whole image lower than 47.5% indicates proliferative diabetic retinopathy.

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