The prevalence of glaucoma in children is 1:10000-1:12000. In the structure of blindness in children, the proportion of the pathology under consideration ranges from 2 to 15 %.The goal of surgical treatment of glaucoma is to achieve the target elevated intraocular pressure (IOP) without the use of medications. Early complications include shallow anterior chamber syndrome, hyphema, ciliochoroidal detachment, excessive hypotension and hypertension. The probability of these complications is quite high: according to some data it can reach 50 %, which shows the relevance of this problem. Aims. To study the frequency and nature of early postoperative complications and to analyze the results of treatment in children with primary congenital glaucom...