A professional challenge
Managing myopia is a significant challenge in contact lens practice. Numerous studies ¹ have demonstrated the effectiveness of RGP lenses for orthokeratology in controlling myopic progression, but not all patients are ideal candidates.
- adjustment of correction with spherical and toric lenses
- use of Myopic lenses, which integrate distance power with an area of peripheral defocus control
- Wolffsohn JS, et al: Global trends in myopia management attitudes and strategies in clinical practice – 2019 Update. Cont Lens Anterior Eye. 2020 Feb.
- Cooper J, Tkatchenko AV: A Review of Current Concepts of the Etiology and Treatment of Myopia. Eye Contact Lens. 2018 Jul.
- Turnbull PR, Munro OJ, Phillips JR: Contact Lens Methods for Clinical Myopia Control. Optom Vis Sci. 2016 Sep.
- Wen D, et al: Efficacy and Acceptability of Orthokeratology for Slowing Myopic Progression in Children: A Systematic Review and Meta-Analysis. J Ophthalmol. 2015 Jun.
Multifocal design
With regard to orthokeratological effects, visible in corneal topography after application and based on the company’s know-how, it has been possible to associate soft monofocal lenses (spherical and toric) with a paracentral area for the modulation of positive spherical aberration.
Maximum customisation
The range offers maximum customisation to facilitate adaptation to the subject’s eye characteristics. The following corrective options are available:
- spherical geometry lenses, for simple myopia
- internal toric lenses with optimised dynamic stabilisation, to compensate for myopia associated with astigmatism
Selection criteria
The fitting of Myopic lenses follows the normal procedures for selecting parameters and applying soft TS lenses. The coverage ratio and movement when blinking and in different gaze positions must meet the criteria of stability and centring in order to maximise corrective effectiveness and reduce optical interference.
The production choice focuses on combining Myopic design with silicone (SH) materials, with high Dk and frequent replacement, to promote many hours of daytime wear and ideal performance. Optimised thicknesses and dynamic stabilisation in toric lenses ensure comfort even for younger patients.