Analysis of poor vision among people aged 60 and over in a town in the suburbs of Shanghai

Objective To understand the state of low vision and blindness and vision parameters of the elderly in a town in the suburbs of Shanghai， and analyze the factors that affect the weakened vision of the elderly.

Methods A total of 5 243 community residents who participated in a community physical examination in Sijing Town of Songjiang District of Shanghai were selected as the subjects. Their eyesight was examined for low vision and blindness using the international standard visual acuity chart. At the same time， medical vision examinations were carried out on the subjects， including eye acuity， spherical degree， axial position， horizontal corneal curvature， vertical corneal curvature and cylinder degree.

Results The increase in age has an impact on the incidence of low vision and blindness in the elderly community in Sijing Town， with an increased proportion of monocular low vision （χ² =112.545， P<0.05）， binocular low vision （χ² =21.006， P<0.05） and monocular blindness （χ² =9.418， P<0.05）. P<0.05）， a significant downward trend of cylindrical power （F=20.358， P<0.05） and a significant upward trend of spherical power （F=50.274， P<0.05）， axial position （F=7.934， P<0.05） and corneal curvature vertical data （F=7.351， P<0.05）.

Conclusion The incidence of low vision and blindness among elderly community residents in Sijing Town is related to the increase of age. Systematic visual inspection is helpful for early detection and treatment of low vision and blindness among elderly residents in the community.