Myopia control spectacle lenses show minimal impact on astigmatism over two years

Specially designed myopia control spectacle lenses were associated with a small, clinically insignificant increase in astigmatism over 2 years, according to a retrospective study of pediatric patients.

Researchers reviewed medical records from 74 children aged 6 to 12 years who wore MyoVision (n = 23), DIMS (n = 22), or Stellest (n = 29) lenses. Astigmatism was assessed using cycloplegic objective and subjective refraction and analyzed using power vector components (J0 and J45) at baseline and after 2 years.

Across all lens groups, total astigmatism increased modestly by approximately -0.41 D (  P < 0.001 for all). Similarly, the J0 vector showed a small but statistically significant increase in each group. Changes in the J45 vector were not significant for MyoVision or Stellest lenses, while a statistically significant decrease was observed with DIMS lenses; however, the magnitude of this change was not clinically meaningful.

Comparisons between the lens types showed no significant differences in changes to total astigmatism or vector components. Multivariate analysis indicated that changes in astigmatism were associated only with changes in spherical equivalent refraction.

Reference

Wen K, Yang B, Liu L, et al. Effect of Three Types of Specially-Designed Myopia Control Spectacle Lenses on Astigmatism: A Two-Year Result. Ophthalmic Physiol Opt. 2026;doi: 10.1007/s44402-026-00077-5. Epub ahead of print. PMID: 41949792.