From Complexity to Simplicity
Wednesday, May 15th 4:00 pm - 8:00 pm
(2-Hours of Continuing Education)
Sharing over 35 years of research and practical experience, this workshop will feature all the basic and advanced principles in design formats for effective orthokeratology in myopia management (US patent).
*This workshop is designed for beginners & advanced fitters.
You must be registered for Wednesday to attend this workshop.
Presenter: Eddie Chow, OD, FIAOMC
4:00 PM - 6:00 PM Orthokeratology for Myopia Control - Understanding the True Optics Biomechanical Properties: A Practitioners Clinical View This course will look at understanding the true corneal profile for the proper fit of reverse geometry lenses as well as the forces acting on the cornea and the lens.
6:00 PM - 8:00 PM Workshop Continued
Topographer data analysis to optimize OrthoTool ™ lens designs
What can be done with CUSTOM design using your topographer
How to input data from your topographer into OrthoTool™ for lens design
Analyzing data for optimal results
Corneal biomechanics as applied to orthokeratology
Hysteresis: viscosity & damping
Resistance factor: central corneal thickness
Biomechanics as related to age and ethnicity
Design format with the implication of corneal biomechanics
Effective modern orthokeratology for successful ortho-k & myopia control
Understanding the peripheral defocus theory
The optics of ortho-k
Corneal tissue movement/migration in ortho-k
Munnerlyn Formula: related to tissue migration/movement and treatment zone to benefit treatment
Jessen Factor: how much to target?
The difference between proprietary & custom design for effective results
Understanding the forces applied in ortho-k & guided principles for lens design (tear film diagrams to illustrate the force concept)
Squeeze film & tension forces
Surface tension, small capillary forces
Aspheric back optical zone to generate extra forces & control of sagittal height of fit
General theories for successful results: understanding the basic concepts & the functions of different curves & why CUSTOM design allows for better myopia control
Learning to identify the fluorescein patterns for effective results
Introduction of OrthoTool ™ (new upgrades with 10 curves)
Why the new software is superior for lens design & myopia control
The difference between proprietary & CUSTOM lens designs
Pushing the limits of conventional lens design
Learn how to design regular & multifocal SOFT & GP lenses (for myopia control)
Learn how to design reverse geometry lens for myopia, hyperopia, presbyopia & post surgical corneas
Guided principles for lens design