DYNAMICS OF THE CORNEAL-COMPENSATED INTRAOCULAR PRESSURE IN DIFFERENT TERMS AFTER FISTULIZING GLAUCOMA SURGERY

Abstract

Research objective was to study the changes of intraocular pressure (IOP) in the postoperative period after a fistulizing antiglaucomatous operation by measurement with the method of a bidirectional cornea pneumoapplanation. Material and methods. Clinical trial was performed on the sampling from 50 patients (50 eyes) underwent antiglaucomatous operation - a trabeculectomy with basal iridectomy. The research by means of the biomechanical Ocular Response Analyzer was carried out before operation, in 1-2 months and in 6-12 months. The control group was made of 100 patients (100 eyes) with glaucoma against the background of hypotensive therapy. Results and discussion. The surgical glaucoma treatment led to IOP depression and normalization in all cases of research group. Level of the corneal compensated IOP before operation was in the range from 19.3 to 34.3 mmHg. The glaucoma surgical treatment led to the corneal compensated IOP expressed depression on average on 8.5 mmHg (34 % of initial). The augmentation of this indicator on average on 1,4 mmHg was revealed in the remote period. The corneal compensated IOP in this situation is more important indicator from the prognostic point of view. The revealed difference of IOP is similar to a tonometry according to Goldman emphasizes high probability of mistakes in this group of patients. Important feature of cornea bidirectional application is the possibility of the corneogram analysis and estimating the quality of IOP measurement.