AIM: To survey and analyze clinical prevalence of glaucoma in Baoding.

METHODS: Totally 4 960 residents in Baoding were selected through cluster sampling between May 2017 and December of 2017 for glaucoma screening. The incidence of different types of glaucoma and the age and sex distribution were analyzed. The eye lesions of patients with diagnosed and newly diagnosed glaucoma were compared.

RESULTS: The prevalence of glaucoma was 2.72%(135/4960), among which the prevalence of primary angle-closure glaucoma(PACG), primary open angle glaucoma(POAG), congenital glaucoma(CG)and secondary glaucoma(SG)was respectively 51.85%, 20.00%, 17.04%, and 11.11%, and the ratio of male to female for which was 1:1.92, 3.50:1, 2.83:1, and 1:1.14 respectively. There was no significant difference in the ratio of males and females in glaucoma patients(P>0.05). The composing proportions of patients with PACG, POAG, SG and CG over 40 were 95.71%, 51.85%, 52.17% and 0 respectively, and the composing ratios of patients with PACG, POAG, SG, and CG in age brackets of ≤49 years, 50-69, and ≥70 years were 1:5.63:2.13, 4.5:1.25:1, 4.67:2:1 and 15:0:0 respectively, with statistically significant difference(P<0.05). There was no significant difference in the changes of visual field and intraocular pressure >21mmHg in diagnosed and newly diagnosed glaucoma patients(P>0.05). The incidence of monocular low vision and monocular blindness in patients newly diagnosed with glaucoma was lower than that in patients diagnosed with glaucoma, and the incidence of optic nerve changes in the former was higher than that in the latter, with statistically significant difference(P<0.05).

CONCLUSION: The prevalence of glaucoma in Baoding is 2.72%, of which PACG has the highest prevalence rate, followed by POAG, SG, and CG, and its incidence is not correlated with gender. Except for CG, which occurs in certain populations, PACG has the highest incidence among those of 50-69 years old. The prevalence of POAG and SG reduces with age, and the incidence of blindness is relatively low in new diagnosis patients with glaucoma, but the progression of the disease is more serious.