Corneal Molding (Ortho K) Design
"Using CAD/CAM Lenses for Ortho Keratology" by Ken Maller OD (Review of Contact Lenses, April 2004)
Simply put, Wave offers a higher level of Ortho Keratology design. No other ortho k lens offers Wave's design platform feature set. Every eye is different and every lens should be as well, especially ortho k lenses.
The first step is proper centration. Since Wave is utilizing with the entire corneal surface map and not just K readings, our designs tend to be larger. This results in a more comfortable fit with better centration. Next, Wave duplicates (closely but not exactly) the corneal periphery into the periphery of the lens to further enhance centration.
The designer has the option of four peripheral/central lens design combinations: spherical/spherical, toric/spherical, toric/toric, free form (asymmetric)/spherical. To help you avoid any surprises, Wave defines the proximity of the molding transition zone to the pupil diameter, an important indicator of potential flare or glare.
All standard Wave controls are available to tune the fit to the designer's preferences. With Wave's Custom Settings feature, the designer has the option of saving preferred settings for future design sessions.
2 sets of post wear topographies for this 9 y/o girl. Previously tried CRT and another company's 4-curve lens with less than stellar results as you can see in the first picture. 2nd picture is 1 week after dispensing Wave lenses.
Why Wave Ortho K?
- Wave lenses tend to be larger. Larger lenses are more comfortable and center better.
- The periphery of the corneal is cut in the periphery of the lens. This improves centration.
- Toric patients can have a lens with a toric periphery and spherical center.
- Wave's Multiple Aspheric Design results in a gentler reverse curve with greater comfort.
The Result?
"Two sets of post wear topographies for this 9 y/o girl. Previously tried CRT and another company's 4-curve lens with less than stellar results as you can see in the (left) image. Right image is 1 week after dispensing Wave lenses." - Wave User
