Power profiles of Peripheral Additions using topographers with Soft Contact Lenses in Myopia Control

30th September 2019

Introduction Various studies have demonstrated that both soft center-distance multifocal lenses and orthokeratology lenses are an effective option in myopia management. On average, the currently available standard geometries are shown to reduce myopia progression by approximately 50% (Data Walline JJ 2016, Figure 1). Figure 1: Data from Walline JJ:...

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An Ortho-K Lens is not Necessarily a Myopia Control Lens

31st July 2024

Introduction by Martin Conway In Orthokeratology, the central cornea is flattened by an amount sufficient for the patient to be able to see clearly without lenses. A peripheral ring of power is also created which is approximately equal but opposite to the target refraction i.e. a -3.00 change at...

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