Purpose: To show the frequency of occurrence of chalazion in a population sample, as well as the characteristics of patients. Methods: A cross-sectional study using randomized population sample was carried out during 2004/2005, in the Midwest region of the state of São Paulo. Participants were evaluated according to demographic variables and ocular examination. Results: The frequency of occurrence of chalazion was 1.56‰, more common in women, people with astigmatism or low hyperopia, with wide variation in age of onset. It […]