This is a national study aimed to evaluate the association between air pollution and meteorological conditions, and cataract surgeries in Israel. We will include all cataract surgeries of Clalit Health Services members between 2009-2021 (about 50,000 patients) who will be compared to healthy Clalit members (approximately 200,000). We will estimate a spatial clustering of the events, as well, as their possible association with exposures accumulated over long periods of time.