The 5th MRT Lecture Series specially invited Professor Jiwen Yang, Director of the Optometry Center at Aier Eye Hospital Liaoning, as the keynote speaker. The session provided an in-depth analysis of the core clinical applications of Multispectral Refraction Topography (MRT) in myopia control and management. Professor Yang, together with attending experts, focused on personalized fitting strategies for orthokeratology (OK) lenses guided by MRT full-eye refractive data, and systematically elaborated on the design concept and clinical value of the MRT-based customized spectacle lenses, the “I.O.R.C. Master Edition.”

1. New Advances in Technical Applications: MRT-Guided Precision Fitting of Orthokeratology (OK) Lenses

In his presentation, Professor Yang pointed out that traditional orthokeratology fitting paradigms tend to focus primarily on central visual correction and corneal topography matching, while to some extent overlooking the potential regulatory role of peripheral retinal defocus on axial elongation. Professor Yang elaborated on the advantages of MRT in generating full-eye refractive topography, highlighting in particular that its wide-angle imaging mode can clearly visualize the annular patterns of peripheral retinal defocus, enabling clinicians to visually assess the distribution of hyperopic or myopic defocus across the fundus.

Based on the precise measurement data provided by MRT, Professor Yang, through relevant clinical cases, demonstrated the significant advantages of wide-angle MRT imaging in the OK lens fitting process. A large number of cases indicate that OK lens fitting schemes optimized under MRT-guided parameters not only ensure wearing safety and comfort, but also show a trend of superior myopia control effectiveness compared with traditional empirical fitting, achieving a shift from “vision correction” to “efficient myopia management.”

2. Evidence of Product Efficacy: Personalized Customization of the “Siwen Master Edition”

During the session, Professor Yang highlighted the empirical research outcomes of the “I.O.R.C. Master Edition shenYANG 1.0” spectacle lenses. Building upon the original I.O.R.C. technology, these lenses feature an upgraded optical design, reducing the central optical zone to 7 mm while expanding the peripheral defocus zone to 65 mm, with the aim of more effectively introducing myopic defocus signals to the peripheral retina.

Clinical Data Validation: This individualized, data-driven design demonstrated outstanding performance. The report highlighted that, compared with the control group (DIMS lenses), this scheme achieved up to 88.89% reduction in refractive progression and 88.89% slowdown in axial elongation in specific cases. These results indicate positive real-world feedback, and particularly provide highly valuable clinical solutions for patients with anisometropia or for challenging cases showing poor response to conventional defocus lenses.

At the conclusion of the meeting, participating experts engaged in lively academic discussions, focusing in particular on the indications selection for the “I.O.R.C. Master Edition” lenses and the image acquisition and clinical interpretation of MRT in OK lens fitting. The meeting reached the following key conclusions: (1) The necessity of visualization in lens fitting: MRT technology enables clinicians to identify the annular patterns of defocus after OK lens wear (e.g., whether effective myopic defocus is generated) through visualized methods, which is a critical factor for enhancing myopia control efficacy. (2) Optimization of the optical zone design: By reducing the central optical zone to enhance peripheral defocus, the design of the “I.O.R.C. Master Edition” has been empirically shown to be an effective approach for improving myopia control outcomes. (3) The inevitable trend toward precision medicine: Whether through fine-tuning OK lens parameters or customizing spectacle lens parameters, these findings confirm the broader direction of the industry—future myopia management will move away from a “one-size-fits-all” approach and fully embrace an era of personalized, precision interventions based on multidimensional ocular parameters.

Meeting recording link: https://meeting.tencent.com/crm/NQvkYwby3b