The Effect of Age on the Indicator of Individual Norm of Intraocular Pressure

Abstract

The screening method for determination of individual norm of IOP proved the efficiency for early glaucoma diagnosis and for the treatment and monitoring of a disease. Purpose: definition of compliance of IOP to individual norm or tolerant IOP (TIOP) in different age groups Patients and methods. 4212 women (65.6%) and 2205 men (34.4%) aged from 22 up to 80 years participated in a research. In total 12820 examinations were analyzed. At each patient the result of compliance of settlement TIOP to the available real oftalmotonus was estimated. Patients with excess of an oftalmotonus concerning TVGD up to 15% were carried to group with low risk of disease developing, with excess from 15 to 25% — with average risk, by more than 25% — with high risk of glaucoma development. All patients were divided into 3 groups depending on age: younger 40 years, with average age of 35 years (620 eyes); from 40 to 60 years, with middle age 54 years (2724 eyes); 60 years, with middle age are more senior 73 years. Results. The regularity consisting in decrease in an indicator of lack of risk of glaucoma with age and in increase in high risk of a disease in the senior age groups was revealed. For patients who entered into risk group, morfofunctional monitoring for the glaucoma exception, dynamic observation with the subsequent analysis of the received results through certain time was recommended. The obtained data confirm decrease in hemodynamic parameters of eyes with increase in age, and assessment of indicators of microcirculation of an eye with calculation of TIOP can be one of important diagnostic criteria for glaucoma diagnostics and monitoring.

Keywords

• iop
• tolerant iop
• age
• glaucoma
• risk
• morfofunctional monitoring