Abstract

Myopia is a common cause of ocular morbidity and an emerging global public health challenge of the 21st century. With high prevalence, myopia poses a long-term burden on the health care system, impact on the global economy, and quality of life. This calls for collaborative global action to identify intervention for the onset and progression of myopia. Common strategies to halt myopia progression include optical, pharmacological, and behavioral methods. The concepts of Orthokeratology (Ortho-K) evolved in the mid-1960s and showed promising results; however, it did not gain much attention essentially due to a lack of knowledge and researches. Despite undergoing a drastic transition, Ortho-K for myopia control remains poorly understood even to ophthalmic professionals. In this review, the existing knowledge of Ortho-K, its effectiveness, and safety are discussed. It also aims to identify the research gap and provide recommendations for future studies.