[Comparative assessment of the state of the cornea after YAG-laser interventions on anterior segment structures].

Unlabelled: YAG-laser interventions are associated with the risk of complications, including in the cornea.

Purpose: This study evaluates the condition of the cornea after laser discission (LD) of secondary cataracts (SC) and laser iridectomy (LI) using corneal confocal microscopy (CCM).

Material And Methods: Group 1 included patients with the diagnosis "Pseudophakia, secondary cataract", they underwent LD of SC.

[Comparative evaluation of transscleral laser exposure in anatomical experiment].

Purpose: This study comparatively analyzed the morphology of eye tissues after laser exposure using the latest generation of transscleral laser techniques - micropulse transscleral cyclophotocoagulation (MP-TSCPC) and laser activation of scleral hydropermeability (LASH) - in an anatomical experiment.

Material And Methods: The study used pulsed-periodic radiation of an Er-glass fiber laser (λ=1.56 μm) and radiation of a diode laser (λ=0.

[The first experience of using femtosecond laser in the treatment of anterior capsular contraction syndrome].

Unlabelled: Prevention and treatment of anterior capsular contraction syndrome (ACCS) is a relevant problem in cataract surgery.

Purpose: The study was performed to develop a femtosecond laser-assisted technique for anterior capsulotomy in anterior capsular contraction syndrome and assess its preliminary results in preventing the progression of pathological changes in the capsular bag.

Material And Methods: The examination and femtosecond laser-assisted treatment without additional surgical intervention was performed in 6 patients (6 eyes) aged 69 to 73 years with anterior capsular contraction syndrome.

[Clinical outcomes of laser activation of hydraulic permeability of the sclera in the treatment of advanced glaucoma].

Purpose: This study evaluates the hypotensive effect and the outcomes of intravital morphological changes in the intervention site after laser activation of scleral hydro-permeability (LASH) by pulsed-periodic radiation from an Er-glass fiber laser (=1.56 m) in patients with advanced glaucoma.

Material And Methods: LASH surgery was performed in 19 patients (19 eyes) aged 48 to 73 years with uncompensated advanced stage (IIIb-c) glaucoma.

[Morphological evaluation of the results of laser activation of scleral hydropermeability in the treatment of glaucoma].

Purpose: The study attempted to experimentally substantiate the possibility of using the laser activation of scleral hydropermeability (LASH) technique in glaucoma treatment by morphological evaluation of treatment outcomes.

Material And Methods: The pulsed-periodic radiation from an Er-glass fiber laser (λ=1.56 μm) was used.

[Current possibilities of laser surgery on anterior eye segment].

The article summarizes the experience of recent years in the development and implementation of novel original laser technologies used in surgery of the anterior segment of the eye. The presented technology of laser activation of scleral hydropermeability (LASH) in glaucoma is based on the effect of enhanced transscleral filtration and has been shown as effective and safe, which was confirmed by the results of a comprehensive clinical and experimental study. Development of another technique was associated with the need to improve the safety of laser interventions in anterior capsule contraction syndrome in pseudophakia, and resulted in a proposition to change the configuration of the anterior lens capsule incision from the usual linear-radial to T-shaped laser anterior capsulorhexis.

[Modern approaches to the treatment of anterior capsule contraction syndrome].

Anterior capsule contraction syndrome is a specific complication of continuous circular capsulorhexis in various phacoemulsification techniques. Surgical, laser and combined methods have been proposed for its treatment. All approaches in the treatment of anterior capsule contraction syndrome have some advantages, as well as certain problems and difficulties.

[On studying the mechanisms and assessing the safety of Nd:YAG laser irradiation of the posterior lens capsule (experimental and clinical study)].

Unlabelled: YAG laser interventions are associated with the risk of complications, including corneal.

Purpose: To study the mechanisms of laser destruction in exposing the posterior lens capsule (PLC) tissue to Nd:YAG laser irradiation, and to evaluate its side effects on the cornea.

Material And Methods: The experiment involved 6 autopsy samples of human posterior lens capsule with different optical and mechanical properties, which were exposed to laser irradiation.

[Laser-induced damage to the cornea after YAG laser surgery of anterior segment structures].

Laser photodestruction (LPD) of tissues is the basis of modern laser reconstructive surgery in ophthalmology. The most common laser technologies based on LPD mechanisms include YAG laser capsulotomy (discission) (LD) of secondary cataract and YAG laser iridectomy (LIE) for glaucoma. Laser reconstructive interventions for secondary cataract, as well as LIE, have a number of advantages over traditional surgery, but at the same time are associated with the risk of complications, including in the cornea.

[Technique for laser activation of scleral hydropermeability in the treatment of patients with refractory forms of glaucoma].

Laser cyclodestructive interventions are considered the method of choice in the treatment of refractory glaucoma. However, the traumatic nature of cyclocoagulation makes it necessary to search for more gentle methods of laser treatment. One of the possible directions is the development of laser transscleral technologies that mainly affect the uveoscleral outflow.

[Role of ultrasound biomicroscopy in assessing the results of laser treatment in capsular contraction syndrome].

Unlabelled: The article presents the results of ultrasound biomicroscopy (UBM) measurements of pseudophakic patients with anterior capsular contraction syndrome (CS).

Purpose: To analyze the results of UBM in capsular CS before and after laser treatment.

Material And Methods: The study included 42 patients with capsular CS.

[Transscleral laser therapy in the treatment of glaucoma].

Nowadays glaucoma is one of the leading causes of irreversible blindness worldwide. The main goal in preservation of vision in glaucoma patients is reducing intraocular pressure (IOP), which is considered the main controlled risk factor for progression of glaucomatous optic neuropathy. The article discusses the effectiveness and safety of various transscleral laser technologies in the treatment of glaucoma.

[Changes in corneal nerves fibers in the early stages of Parkinson's disease according to in vivo confocal microscopy (preliminary report)].

Unlabelled: One of the research directions of the so-called non-motor manifestations of Parkinson's disease (PD) is associated with the assessment of structural and functional changes in the organ of vision. An assessment of the state of thin non-myelinated corneal nerve fibers (CNF) in Parkinson's disease seems to be promising considering the neurodegenerative nature of the disease, as well as the possibility of objective intravital assessment of both functional and structural changes in CNF.

Purpose: To analyze the changes in the course and structure of corneal nerve fibers in the early stages of Parkinson's disease based on an objective algorithm of corneal confocal microscopy (CCM).

[Atomic force microscopy in the study of retinal structure].

The review addresses the current state of atomic force microscopy (AFM) usage in ophthalmology. Briefly presented here are the history of the development of AFM, principles and modes of operation, its advantages, disadvantages, as well as a comparison with other types of microscopy. The review describes the capabilities of AFM in visualization of various structures of the eye.

[Persistent hyaloid artery in an adult (a case report)].

The article presents a clinical case of a functioning hyaloid artery in a 69-year-old patient. The results of OCT-angiography made it possible to detect the presence of blood flow in the projection of the persistent hyaloid artery (PHA) on the cross-section and en-face images. The vascular bed of PHA spreading along the posterior surface of the lens in the form of separate branches was visualized by slit-lamp biomicroscopy.

[SMILE keratorefractive surgery technique].

Small incision lenticule extraction (SMILE) keratorefractive surgery technique is a laser surgery alternative to common methods that doesn't require laser ablation of the cornea. Despite its novelty, SMILE technique has already demonstrated positive clinical results comparable to Photorefractive Keratectomy (PRK) and Laser-Assisted in Situ Keratomileusis (LASIK), which led to its widespread application in clinical practice. Compared with other keratorefractive techniques, SMILE has a number of distinct advantage including high biomechanical stability of the cornea, low risk of dry eye syndrome, absence of a corneal flap and associated complications, preservation of corneal epithelium.

[Neurodegenerative changes of the retina in patients with diabetes].

Purpose: To investigate the morphological and functional state of the outer and inner layers of the retina in patients with diabetes mellitus (DM) and nonproliferative diabetic retinopathy (NPDR), to determine the presence and nature of the relationships between structural and functional changes.

Material And Methods: The study included 50 patients with subcompensated diabetes and NPDR and 40 people from the control group (healthy). All patients underwent OCT of the retina and optic nerve using RTVue-100 apparatus (Optovue, USA), as well as multifocal electroretinography (mfERG) and pattern electroretinography (PERG) on EP-1000 Multifocal device ('Tomey GmbH', Germany).

[Retinal changes after laser interventions on anterior segment of the eyeball].

Laser surgery of the cornea, iris, angle of the anterior chamber and other parts of anterior segment of the eye sees wide application in clinical practice. The adverse effects it can cause in the anterior segment are well known and understood. At the same time, changes the treatment method can cause in the posterior segment of the eye - primarily, in macular area of the cornea, which is of great importance, have not been studied sufficiently.

[Results of laser confocal microscopy of the cornea in viral uveitis (a preliminary report)].

Unlabelled: Herpesviruses involve neurotropic activity (they affect nerve cells) and have the ability to induce an immune response (a special tropism for immune tissue), which provides a valid reason for studying the possibilities of visualizing nerve fibers of the cornea and Langerhans cells (LC) in viral uveitis (with prospective applications in early diagnosis).

Purpose: To evaluate the results of laser corneal confocal microscopy (CCM) in viral uveitis of varying localization.

Material And Methods: The main study group included 23 patients (23 eyes) diagnosed with unilateral herpesviral uveitis (chorioretinitis), the patients' age varied from 18 to 79 years.

[New biophotonics methods for improving efficiency and safety of laser modification of the fibrous tunic of the eye].

The article describes a newly developed and tested diffractive optical element (DOE) that converts non-uniform radiation of the laser output into a homogeneous ring. The Gerchberg-Saxton algorithm is shown to be well suited for achieving annular intensity distribution. Testing this ring transducer on threshold-plasticity cornea demonstrated the reversibility of axisymmetric changes in the cornea.

[Complex morphological assessment of anterior capsule of the lens in patients with capsular contraction syndrome (a clinical case study)].

Unlabelled: The anterior capsular contraction syndrome (ACCS) in pseudophakic patients is known to be accompanied by postoperative opacity of anterior lens capsule (ALC) and partial or full closure of anterior capsulotomy opening.

Purpose: To perform complex morphological assessment of ALC in patients with ACCS.

Material And Methods: The study involved complex analysis of ALC that was removed due to ACCS in the pseudophakic eye in the setting of diabetes mellitus and past vitreoretinal surgery.

[Combined YAG-laser capsulotomy in pseudophakic patients with anterior capsular contraction syndrome].

Unlabelled: Progressive metaplastic fibrosis of the anterior capsulorhexis opening is a frequent complication of the postoperative period. There is a widely practiced method of anterior capsular contraction syndrome (ACCS) correction through radial anterior laser capsulotomy. Despite many advantages, it can be complicated by unpredictable anterior capsule tearing and intraocular lens (IOL) dislocation into the vitreous Body, which justifies the search for new technical solutions.

[Capsule contraction syndrome in pseudophakia].

This is a review of the literature on capsule contraction syndrome (CCS) in pseudophakic patients that involves severe fibrosis along the margin of the anterior capsule's opening and progressive contraction of the capsular bag. Possible causes of CCS and principles of its prevention and treatment have been analyzed.

[Morphological assessment of lens capsule after different techniques of cataract extraction].

Aim: to evaluate morphological changes in the posterior lens capsule (LC) after different techniques of cataract extraction.

Material And Methods: Eight pseudophakic human autopsy eyes were divided into two groups by the technique used for cataract extraction. Group 1 included 4 eyes following extracapsular cataract extraction (ECCE) and rigid IOL implantation.