How does the myopic peripheral retina respond to multifocal contact lens wear?

Analysis of the BLINK study results showed a global more than localized impact on slowing eye growth in +2.50 CD multifocal contact lens wear. The slowed growth effects were greater centrally than peripherally. This suggests local defocus responses may not provide the full story behind myopia control mechanisms.

When axial length progresses, but not refractive error

In this case, we meet a child whose axial length has progressed 0.4mm in one year, even with myopia control treatment. Yet, his refractive error hasn’t changed. What could cause this and what is the best course of action?

Blur adaptation in children wearing orthokeratology

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.

Orthokeratology: Is it a compliance issue or lens fitting problem?

In this case of a poor outcome in orthokeratology wear which appears to indicate non-compliance, a systematic approach highlighted the cause. Read more to learn about the systematic troubleshooting process and factors involved in compliance and successful ortho-k wear.

Should we fit orthokeratology to a child with trichiasis?

Orthokeratology is effective for myopia control but is it suitable for a child with trichiasis and corneal staining? This case compiles the treatment suggestions for managing a young myopic patient with trichiasis from the Facebook community, with a focus on safety.

Time spent outdoors improves success with MiSight 1 day

This paper identified time spent outdoors as the key factor in predicting better myopia control outcomes in children wearing with MiSight 1 day contact lenses. Other factors which weren’t predictive included age, refraction, binocular vision findings, pupil size and time spent at near.

Does pupil size matter in contact lens fitting?

Does pupil size affect myopia control efficacy when fitting soft contact lenses or orthokeratology for myopia control? This case study explores the relationship between pupil size, various optic designs and how both vision and myopia outcomes could be impacted.

Do multi-zone myopia control lenses maintain their defocus profiles at all viewing distances?

This study showed that multi-zone spectacle and contact lenses used for myopia control provide myopic defocus at far distances. At near, changes in accommodative lag, pupil miosis and spherical aberration in individuals may mean there are lesser amounts of myopic defocus and reduced image quality. However, all the lenses were still able to provide sufficient image clarity at near for typical size print.

Dual focus contact lenses and near viewing

This study examines the effect that dual focus contact lenses have on accommodation and defocus during near viewing, and the results provide clues towards understanding the myopia control mechanism of these contact lenses.