How do lighting levels and contrast affect vision with multifocal contact lenses?

In young adult myopes, Biofinity centre-distance +2.50 Add and NaturalVue multifocal contact lenses both showed reduced visual acuity in lower lighting and low contrast conditions, and especially with a glare source, compared to single vision. Reading rate under normal lighting was also reduced by 4-8%. The multifocal designs performed similarly, although Biofinity required more over-refraction for best distance acuity.

IMI Report on Prevention of myopia and its progression

In myopic children, interventions to slow progression are warranted to prevent the development of high myopia and subsequent pathology and also to reduce the economic burden caused by uncorrected and pathologic myopia. This IMI Report describes the latest advice on preventing the development and progression of myopia – read the summary here.

How do myopia control contact lenses impact binocular vision?

This study showed that aspheric multifocal soft contact lenses (Biofinity +2.50D and NaturalVue) reduce accommodative response and increase exophoria, while MiSight concentric dual-focus minimally impacts binocular vision function compared to single vision contact lenses. All myopia control contact lenses increased divergence range slightly but did not impact convergence.

Adult-onset myopia: measurement and management

Myopia which onsets in childhood usually stabilizes in the early twenties. How should we manage adult-onset myopia and progression? This case investigates factors, diagnostic measurements and management of adult-onset myopia.

Managing the adult progressing myope with diabetes

This case discusses how blood glucose levels can influence refractive error, and details a fascinating case of a young adult who has been aphakic from childhood. Despite a highly hyperopic refraction, she is diagnosed with axial myopia. Does she need myopia control?

Which is best? Myopia Management for an astigmatic myope

Contact lens options are ideal for higher myopes. What about when they have moderate astigmatism as well? This case discusses the evidence base for myopia control options which correct for astigmatism, along with patient-specific considerations and whether a combination treatment with atropine is needed.

Multifocal contact lenses and higher order aberrations – a potential myopia control mechanism?

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.

Multifocal contact lenses don’t influence peripheral vision detection in young adults

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.