Introduction. According to the level of intraocular pressure (IOP), open
angle glaucoma is divided into high tension glaucoma (HTG) and normal tension
glaucoma (NTG). Objective. To determine if there are differences in the
distribution of patients by age and sex between NTG and HTG. Methods. Our
prospective study included 30 patients with NTG and 30 with HTG. A complete
eye examination was performed. The examination included measuring of
intraocular pressure by Goldmann applanation tonometry, examination of optic
disc head by indirect ophthalmoscopy with Volk 90 D lens and visual field
examination using the Octopus program. Results. The average damage of visual
field in the group of patients with NTG was 8.14?4.43 dB, while in the
group with HTG it was 7.40?2.84 dB (p>0.05). The average age of the group of
patients with NTG was 66?11.58 years, while among those with HTG the average
age was 59.7?11.63 years (p<0.01). Among the patients with NTG there were
three times more women than men (?2=9.124; p<0.01), while in the group of
patients with HTG there were more men than women, but without statistically
significant difference between the tested groups (?2=1.851; p>0.05).
Conclusion. Open angle glaucoma is a disease of elderly population. According
to our results, risk factors for this disease can be age and sex. NTG is more
frequently present than HTG among elderly population and females.