Advances in clinical research on the control of myopia with orthokeratology

Orthokeratology(OK lens)is considered to be one of the most effective optical treatments for myopia control. Its safety and efficiency in controlling myopia progression have been rigorously verified by numerous studies. As the materials and technology of lens have evolved, orthokeratology has demonstrated remarkable results in myopia control, particularly among children with moderate myopia. Not only does orthokeratology effectively decelerate axial length growth, but it also positively impacts regulatory function. However, it is crucial to acknowledge that there may be some compromise in visual quality. Therefore, the perfect balance between lens design and patient adaptability must be considered to maintain visual clarity and optimize myopia control. While orthokeratology has made significant strides in myopia control, there are still lingering questions about its long-term stability, the precise impact of visual quality, and the others. Furthermore, combining orthokeratology with other strategies offers better effects. Nevertheless, further clinical data is needed to estimate the rebound effects of withdrawal. This review summarizes the technology, safety, efficacy and combination therapy of orthokeratology on myopia control.