[A novel model of artificial iris-lens diaphragm for reconstruction of extensive iris defects (experimental rationale)].

Experimental rationale is presented for novel model of artificial iris-lens diaphragm (ILD) that provides a better adaptation of diaphragm to anterior segment structures variable in size and reduction of pressure on ciliary body due to modifications in design of supporting elements. Presented model is good in self-centration, allows sutureless fixation in lens capsule or the other supporting structures in aniridia.

[Initial experience of threefocal diffractive/refractive intraocular lenses implantation].

Due to original Russian technique of frontal photopolimerization of liquid oligomers in form the use of threefocal intraocular lense (IOL) with square relief of diffractive surface has become possible. The first 36 implantations of MIOL-Record showed good clinical and functional results. This lens provides high quality of intermediate vision without decrease of distant and near visual acuity. 94% of patients completely refused spectacle correction for all distances. The vast majority of patients are satisfied with their intermediate vision, 94% of them don't use spectacles for computer work. Incidence of disphotopsias is similar to that after other MIOLs implantation.

[Experimental rationale for the use of a new model of the artificial iridolens stop for reconstructive surgery].

A new-design artificial iridolens stop (ILS) has been constructed, which is monolithic, elastic, universal by possible implantation modalities in relation to the degree of a damage to the anatomy of the anterior segment of the eye, adapted to surgery of minor incisions, and alleviating intra- and postoperative complications. The color spectrum of the haptic part of an ILS yields a good cosmetic effect. The ILS is made from a hydrophobic spatially sutured polymer based on polyoxypropylene. The experimental findings suggest that the proposed ILSs show a chemical and biomedical safety. The stops exert no locally irritant, sensitizing, and toxic effects, they are sterile, apyrogenic and meet the specifications of the items permanently contacting the internal environment of the eye.

[Results of solid monolithic intraocular lenses implantation made by photopolymerization]. / Rezul'taty implantatsii otechestvennykh zhestkikh monolitnykh intraokuliarnykh linz, izgotovlennykh metodom fotopolimerizatsii.

Results of experimental and clinical trials of a new solid intraocular lens made by an original technology from an acrylic polymer oligocarbonate methacrylate are analyzed. This IOL is monolithic, the diameter of the optic part is large, and the centering openings are made on special influxes beyond the optic zone of the lens. Results of experimental trials on rabbits and clinical use of T-70C "J" IOLs are discussed. The authors emphasize a high stability of the lens in the eye and a low incidence of postoperative complications, which they explain by lack of toxicity of the material, design, and simple procedure of implantation of this IOL.