[Ocular manifestations of Marfan syndrome].

Marfan syndrome is an orphan disease that is caused by a mutation in the gene located on chromosome 15 (15q21.1) and is usually inherited in an autosomal dominant manner. The article reviews the results of studies concerning the potential ocular manifestations of Marfan syndrome.

[Ocular ischemic changes in thrombotic microangiopathy associated with malignant arterial hypertension (case study)].

The article presents a clinical observation of visual organ damage as an extrarenal manifestation of thrombotic microangiopathy in malignant arterial hypertension with an analysis of structural and functional changes in the eye by modern examination methods. The presence of renal thrombotic microangiopathy was verified by kidney biopsy. Optical coherence tomography was used to determine structural changes in the inner and outer layers of the retina in the form of their disorganization, areas of thickening of the nerve fiber layer, intraretinal inclusions and cysts, alterations of the ellipsoid zone and retinal pigment epithelium.

[Scanning electron microscopy results of the vitreous body in asteroid hyalosis].

Purpose: To evaluate the structure of vitreous body in asteroid hyalosis by low vacuum scanning electron microscopy.

Material And Methods: The material of the study was samples of the vitreous body obtained from 7 patients aged from 62 to 72 years with vitreomacular traction syndrome during vitrectomy. In all cases, clinical manifestations of asteroid hyalosis (the presence of multiple point-like echo-positive inclusions) were identified during the preoperative examination.

[Structural features of the vitreous body in asteroid hyalosis].

Purpose: To analyze intravital structure of the vitreous body in asteroid hyalosis using digital ultrasound imaging.

Material And Methods: The study included 64 patients (128 eyes) aged 62 to 73 years with opacities in the vitreous body characterized as asteroid hyalosis.

Results: The macrostructure of the vitreous body was evaluated based on the results of digital ultrasound imaging.

[Asteroid hyalosis].

The article analyzes existing information on clinical and experimental studies of vitreous changes in asteroid hyalosis, historical aspects of how this condition was studied over the past hundred years, its occurrence and pathogenesis. Results of various studies were used to evaluate current understanding of the forms and elemental composition of phospholipid mineral sedimentation on vitreous structures and methods of its examination. The problem of intravital assessment of the condition of vitreous body was analyzed, and a method was suggested for studying the macrostructure of hyaloid tracts and the state of the vitreous body by means of digital ultrasound in patients with asteroid hyalosis.