Machekhin V.A.
CLINICAL FEATURES OF GLAUCOMA IN HIGH MYOPIA ^{[№ 12 ' 2015]}
High myopia is one of the risk factors for glaucoma development. The difficulties of glaucoma detection in such patients are connected with the fact that high myopia itself may be accompanied by the significant visual acuity reduction especially in normal-tension glaucoma. Straining and thinning of the exterior ocular membrane often leads to the incorrect IOP assessment and severe glaucoma development. The purpose of our work is to detect the main reasons, which lead to the advanced stages of glaucoma in high myopia. There was made a retrospective analysis of the case histories of 97 patients (188 eyes) with high myopia and glaucoma, examined in 2006-2015. Among the primary patients such a combination was detected in 0.8–0.9 %. All examined patients had progressive myopia because detected in the early age and on account of the different individual factors it led to the eyeball growth and ocular refraction increase — a condition that may be accompanied by such complications as chorioretinal dystrophy, hemorrhages into the vitreous body, retinal detachment and others.All these besides glaucoma may become the reason for the significant reduction of the corrected visual acuity. Though according to our data such a combination occurred only in 0.9 % of patients with high myopia, it demanded the proper attention to predict the glaucoma blindness. It was noted, that the appearance and manifestation degree of glaucoma process in patients with high myopia was connected neither with the age, nor with the myopia degree and axial length of the eye. The main reason was the false assessment of the true intraocular pressure value. All patients with high myopia should undergo the examination for glaucoma notlater than at the age of 30 using computed perimetry and treatment approach determined not by the standard true IOP limits (up to 21 mm Hg) but by the individual tolerant pressure value.

Machekhin V.A.
THE DEPENDENCE OF TOLERANT INTRAOCULAR PRESSURE ON DIASTOLIC BLOOD PRESSURE IN A.BRACHIALIS ^{[№ 12 ' 2014]}
There was made a comparative analysis of the examination results of the true intraocular pressure limit, based on the intraocular blood circulation model, developed by the ophthalmologists in the last century using the ophthalmodynamometry and the maximum tolerant intraocular pressure, based on the vast clinical data according to S.V. Balalin. In both cases the accurate dependence of the true intraocular pressure on the diastolic blood pressure value, more marked in mathematical calculation, was observed.

Machekhin V.A.
TRUE INTRAOCULAR PRESSURE ACCORDING TO THE DATA OBTAINED WITH PNEUMOTONOMETRY AND APPLANATION TONOMETRY BY MAKLAKOV ^{[№ 4 ' 2013]}
There was performed a true IOP measurement on 289 eyes of non-selected patients with normal eyes, glaucoma suspect and glaucomatous ones. Pneumotonometry was used in each eye as well as applanation tonometry by Maklakov by means of Nesterov-Egorov's measuring conversion lines with a repeated control print measurement. It was noted that in control measurement the IOP value was higher than the first one in most cases. In normal pneumotonometric IOP level the results of the applanation tonometry were similar, in high pneumotonometric IOP level values of the applanation tonometry were significantly lower.

Machekhin V.A.
PNEUMOTONOMETRY ON HEALTHY EYES AND IN CASE OF GLAUCOMA (THE RESULTS OF PROLONGED, REPEATED OBSERVATIONS) ^{[№ 12 ' 2012]}
There was conducted a retrospective analysis of the clinical records of 31 outpatients (62 eyes) with glaucoma at the age of 52–82 years old (mean age — 68.6 years old), who underwent Reichert 7cr pneumotonometry. 326 measurements were obtained, 203 of which were made on the eyes with different stages of primary open-angle glaucoma and 123 — on the healthy fellow eyes of the same patients. Follow-up period averaged at 6.9 months. In most cases simultaneously the applanation tonometry by Maklakov was performed on the same eyes with conversion to the true intraocular pressure.