Abstract
Presentation Description :
The prevalence of myopia is high in East Asian countries such as China, Japan, and Singapore and has been reported to be increasing globally. A range of optical interventions have been developed to slow the progression of myopia, and many sophisticated studies have been conducted in the last two decades. This presentation will summarize key studies and their outcomes on myopia control using contact lenses (CLs) such as orthokeratology and multifocal soft CLs.
Orthokeratology trials have consistently shown a 2-year slowing of axial elongation between 0.24 and 0.32 mm. Among soft CL interventions, a dual-focus concentric design resulted in a 3-year axial elongation and myopia progression reduction of 0.32 mm and 0.73 D. Extended depth of focus designs reduced these values by 0.41 to 0.46 mm and 0.78 to 0.84 D, respectively. More recently, very promising myopia control effects of a novel soft CL with a noncoaxial ring-focus design have been reported, although it was a short-term observation. All of the above optical interventions have the potential to significantly slow myopia progression. Quality of vision is largely unaffected, and safety is satisfactory. Areas of uncertainty include the potential for post-treatment acceleration of progression (rebound phenomena). The potential benefit of adding low-concentration atropine eye drops to optical interventions will also be discussed.
This abstract was presented at the 2024 ARVO Annual Meeting, held in Seattle, WA, May 5-9, 2024.