Corneal contact lenses, also called contact lenses, are mainly used to correct refractive errors, so the use of these glasses is now becoming more and more common. Due to the quality of the lenses, the health status of the wearer, and hygiene habits, such as long-term wear or incorrect wearing methods, it can easily lead to a variety of complications. For example, common complications mainly include toxic conjunctivitis, local allergic reaction, giant papillary conjunctivitis, corneal epithelial damage, corneal stromal infiltration, corneal endothelial changes, corneal neovascularization, infectious keratitis, etc. Therefore, it is recommended to try not to wear corneal contact lenses for a long period of time, or to pay attention to good care and cleaning during wear to minimize the chance of complications.