[Antiglaucoma drainage operations in the reconstruction of the anterior eye segment]

Two new methods for antiglaucoma draining surgery are suggested, consisting in perforating keratoplasty with elements of partial or complete reconstruction of the anterior segment of the eye in cases with combined injuries to the cornea and other structures, associated with secondary glaucoma. The first of these methods consists in conducting an 'active' draining tube, made of silicone, via the trabeculectomy site into the anterior chamber, the draining tube then being fixed to the iris in the ciliary zone; the drainage tube has an extra opening on its proximal end. The other method implies the creation of two new special routes for intraocular fluid discharge; a cyclodialysis opening is formed, through which a capillary drainage is introduced into the anterior chamber, that is fixed to the iris. To prevent over growing of the distal end of the drainage tube with tissues of the operated on eye it was placed in some patients under a silicone explant (sponge). Forty-five patients (45 eyes) were operated on making use of the former method and 23 patients (23 eyes) were operated on with the use of the latter method. The results were followed up for up to 3 years; intraocular pressure compensation was attained in 91.1% of cases, transparent and semitransparent taking in of perforated keratotransplants in 75.6%, vision acuity improvement from the right light projection up to 0.3 diopters and higher was observed in 62.2% of patients.