Fig. 1. Seasonal patterns in the incidence of infectious keratitis in Nottingham, UK, between January 2008 and December 2019.

The monthly incidence is presented as mean with 95% confidence interval (depicted by the error bars). For better graphical presentation purpose, “22 Dec–21 Jan” was referred to as month “January”, “22 Jan–21 Feb” was referred to as month “February”, and so on.