[Local mechanisms of relationship between colloid-osmotic pressure and ophthalmic tone in patients with diabetes mellitus].

Forty-two patients (84 eyes) aged 35-73 were examined, 11 of these with type I diabetes mellitus and 31 with type II diabetes. All examinees were in the sub- and decompensation phase. Time course of glycemia and intraocular pressure was followed up (check-ups on an empty stomach and 1 h after eating). An increase of blood sugar level 1 h after eating is paralleled by a decrease of intraocular pressure. The main mechanism of inverse changes of ophthalmic tone under conditions of hyperglycemia is dehydration of ocular tissues.