[Glaucoma surgery: from traditional filtration techniques to modern principles of bioengineering].

The article reviews the history of glaucoma surgery and analyses the connection between the accumulation of knowledge on glaucoma progression and the emergence of effective surgical treatment methods based on glaucoma pathogenesis. It also describes modern principles of preventing filtering bleb scarring. Particular attention is devoted to biodegradable collagen matrix implants.

[Compensating the Descemet's membrane defect (a clinical case study)].

The article describes a clinical case of Descemet's membrane detachment that occurred during cataract phacoemulsification with implantation of intraocular lens. Significant corneal edema developed in the early post-op period. Considering the ability of endothelium to close its own defects even with large injury area, the patient was followed-up for 2 years.

[Bandage keratoplasty therapeutic-optical in treatment of progressing pellucid marginal corneal degeneration (a preliminary report)].

Purpose: To provide preliminary estimation of the effectiveness of bandage therapeutic-optical keratoplasty (BTOK; previously called inralamellar bandage keratoplasty) in patients with pellucid marginal corneal degeneration (PMD).

Material And Methods: The study included 7 patients (8 eyes) with PMD aged 35 to 55 years operated with intralamellar bandage keratoplasty, the follow-up period comprised 3, 6, and 12 months after the surgery.

Results: All patients with PMD operated with intralamellar bandage keratoplasty showed increase in visual acuity to an average of 0.

[Polishing of Bowman's membrane with diamond burr in the treatment of recurrent corneal erosion syndrome].

Purpose: To study the effectiveness of polishing Bowman's membrane with a diamond burr (DBPBM) in the treatment of recurrent corneal erosion syndrome (RCES).

Material And Methods: The study included 22 patients (22 eyes) with RCES aged 20-56 years who underwent our original modification of DBPBM. All patients had keratotopography examined, endothelial cell density measured, and optical coherence tomography (OCT) of the cornea taken before and after the procedure.

[Objective assessment of donor material for penetrating corneal transplantation].

Unlabelled: Reliable suitability evaluation of donor material is the crucial issue of penetrating corneal transplantation. The main parameter to be considered is endothelial cell density (ECD). However, when it comes to practice, one has to admit significant variation in ECD readings of cadaver corneas obtained by different methods.