With the rapid development of molecular biology technologies such as whole-genome testing in the past decade, non-coding RNA has been deeply explored. Circular RNA(circRNA)gradually becomes a hot topic in recent years, which plays an important role in the occurrence and development of a variety of diseases, and relevant studies have been carried out in ophthalmological diseases. This article will review the mechanism, basic research, and clinical findings of circRNA in various ophthalmic diseases, and briefly discuss the potential clinical significance of circRNA in ophthalmic diseases.