Fractal-Percolation Structure Architectonics in Sol-Gel Synthesis.

It was developed a new technique to assess micro- and mesopores with sizes below a few nanometers. The porous materials with hierarchical fractal-percolation structure were obtained with the sol-gel method. The tetraethoxysilane hydrolysis and polycondensation reactions were performed in the presence of salts as the sources of metal oxides.

[Macular edema after prior brachytherapy in a diabetic retinopathy patient (clinical case)].

The authors describe a case of radiation retinopathy after brachytherapy for uveal melanoma successfully treated with nepafenac 0.1%, a non-steroidal anti-inflammotory agent.

[Dry eye syndrome in patients with primary open-angle glaucoma].

Aim: to determine the frequency and severity of dry eye syndrome (DES) in primary open-angle glaucoma (POAG) patients that are newly diagnosed or already receiving beta blocker instillation therapy.

Material And Methods: A total of 127 patients (190 eyes) with POAG were divided into two groups. Group 1 included 55 newly diagnosed patients (88 eyes), group 2-72 POAG patients (102 eyes) instilling timolol 0.

[The IgG subclasses in patients with inhibitory form of hemophilia infected and noninfected with viruses].

The sample consisted of 102 patients with hemophilia infected and non-infected with hepatitis viruses. It is established that in case of inhibitory form of hemophilia concentration of IgG increases at the expense of subclass II and in case of non-inhibitory form of hemophilia valuable increase of concentration of IgG occurs at the expense of subclasses I, II and III under concomitant chronic hepatitis. No significant differences between these groups in levels of antibodies to factors VIII and IX is established.

[Retrospective analysis of causes of enucleations after anti-glaucomatous surgery].

Proximate causes of intraocular pressure (IOP) decompensation accompanied with persistent pain syndrome were determined based on results of morphological examination of 59 eyes enucleated due to terminal previously operated glaucoma and medical history analysis. Excessive scarring, formation of solid hyalinized membrane in the site of filter pad, closure of anterior chamber angle with synechia as an outcome of chronic iridocyclitis and inappropriate surgical approach lead to increase in the resistance of the aqueous humor outflow and result in glaucoma decompensation causing complications that necessitate enucleation. The most common complications are the following: bacterial corneal ulcer with potential perforation and endophthalmitis, hemorrhagic choroidal detachment, vitreous hemorrhage, persistent pain syndrome and phthisis bulbi.