Assessing the severity of conjunctivochalasis in a senile population: a community-based epidemiology study in Shanghai, China

Xingru Zhang; Qingsong Li; Haidong Zou; Jinjuan Peng; Caicai Shi; Huanming Zhou; Guili Zhang; Minhong Xiang; Yijie Li
January 2011
BMC Public Health;2011, Vol. 11 Issue 1, p198
Academic Journal
Background: In a previous hospital-based study, conjunctivochalasis was diagnosed in 85.24% of 1416 patients aged 1 to 94 years and in 98.5% of patients aged 60 or older. This report is the first to present data from a large scale epidemiologic study on conjunctivochalasis in a community-based population, thereby helping to better identify the severity of conjunctivochalasis in the general population. Methods: This community-based epidemiologic study was conducted to evaluate prevalence rates and related factors of conjunctivochalasis among people over 60 years old in the CaoYangXinCun community, Shanghai, China. Cluster sampling was used in randomly selected local residents aged no less than 60 years. A cross-sectional study using a slit-lamp ophthalmoscope for examination was carried out from September 2008 to October 2008. A modified grading system based on the well-accepted Meller and Tseng's system was used. SPSS10.0 software was used for data and statistical analysis. Results: A total of 2110 residents took part in this study, with a response rate of 94.85%. Among these, 930 cases were confirmed as conjunctivochalasis, with a prevalence rate of 44.08%. The prevalence rate increased with age (X2 = 10.44, P < 0.01). A total of 1762 eyes were confirmed as conjunctivochalasis eyes. Of these eyes, 943 were classified as Grade I (53.52%), 647 as Grade II (36.72%), 162 as Grade III (9.19%), and the remaining 10 eyes as Grade IV (0.57%). The conjunctiva usually accumulated on the nasal and temporal areas of the conjunctival sac (944 eyes, 53.58%). Conclusions: Although the rate estimated in the present study is not as high as reported in the former hospitalbased study, conjunctivochalasis is considered a common age-related eye disease, deserving more attention to its early diagnosis.


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