Soft Multifocal Contact Lenses that have been used to attempt to mimic the altered image shape on the retina that Ortho K achieves, which is the mechanism that makes Ortho K the most effective form of myopia control.
Unfortunately, there is a reduced ability to design and manufacture the degree of optical change required to copy the successful effect in Ortho K retainers. This means Soft Multifocal Contact Lenses don’t have the ability at this time to recreate the Ortho K effect to the degree required to have a similar myopia control effect, even in lower amounts of myopia. There has been no recognised research published to show how effective Soft Multifocal Contact Lenses are for controlling progression in higher amounts of myopia.
Soft Multifocal Contact lenses that have been produced for myopia control create a high level of thickness in parts of the contact lens, which has the undesirable side effect of reducing important oxygen transmission (breathability) to the cornea. This is something we strive to avoid at all times in all our clients and is even more important in young developing eyes.
In summary, Soft Multifocal Contact Lenses will provide some degree of myopia control in lower amounts of myopia, but the most reliable research to date shows up to 29% slowing of myopia progression. If you’re not suitable for Ortho K and still want your child to be independent of glasses while still seeing well for sport and other activities, then the evidence shows it is best to use myopia control eye-drops in combination with normal daily disposable contact lenses to reduce the progression of myopia.