Spectacle lenses for myopia control provide a clear central zone and a ‘treatment’ area for myopic defocus. This study found that atropine 0.01% and glare situations had minimal impacts on visual performance when adults wore the DIMS spectacle lens. This indicates likely tolerance of the combination in children.
Extended depth of focus (EDOF) designs in soft contact lenses are employed for presbyopia correction as well as myopia control. This article explores differences between contact lens designs which could be termed ‘multifocal’, and how this could factor into clinical outcomes.
Peripheral vision function and reading speed were unaffected by highly aspherical (HAL) and slightly aspherical lenslet (SAL) spectacle lens designs compared to single vision lenses. Low contrast acuity was slightly reduced through the lenslet zone.
This study evaluated the visual performance and optical quality of three lenslet design spectacle lenses. While all degraded visual performance in some capacity, the concentric design (highly and slightly aspherical) lenses generally had a significantly lower impact on both acuity and contrast than honeycomb configuration (HC).
After 1 month of wearing orthokeratology lenses, children were shown to have reduced accommodative lag and increased blur sensitivity, leading to the suggestion that blur adaptation is conducive in achieving good visual acuities and visual function in ortho-k wear.
Increasing power in a myopia control treatment zone of a multifocal soft contact lens can increase myopia control efficacy but negatively impact vision. This study is the first optical characterization of a novel design to improve this relationship between treatment zone power and vision quality.
This abstract estimates that 29% of global uncorrectable visual impairment is attributable to myopia. This emphasizes the importance of myopia control and long-term eye health monitoring, working to prevent or reduce the risk of myopia-related ocular pathology.
MiSight 1 day is a dual focus contact lens – it’s not a multifocal as it does not provide an ‘add’ at near. When considering a first correction for a young myope, how should we prioritize both myopia correction and control? Read more in this case.
Total spherical-like higher-order aberrations (HOA) increased by more than double in the distance-centred +2.50 Add compared to +1.50 Add, with total coma-like HOA increasing further. Since orthokeratology studies have reported an association between more change in HOAs and better myopia control efficacy, this could indicate a mechanism of action in multifocal contact lens myopia control.
Young adults fit with CooperVision Proclear multifocal contact lenses showed no loss of peripheral vision detection ability compared to single vision contact lenses. The near add was chosen to generate +0.50 or +1.00 of peripheral blur, confirmed by peripheral refraction measurement. This is a positive indication that fitting MFCLs in young wearers doesn’t impact peripheral visual performance.
