What does this research mean for the field?

Grid Dimension Multiregion (GDM) spectacle lenses show slightly superior efficacy in controlling myopia progression compared to HAL lenses over one year. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to compare the effectiveness of Grid Dimension Multiregion (GDM) lenses and Halo (HAL) lenses in controlling myopia progression.

March 1, 2026Open Access

Myopia Control Efficacy of Grid Dimension Multiregion Spectacle Lenses: A One-Year Randomized Double-Masked Controlled Trial.

Key Points

This research aims to compare the effectiveness of Grid Dimension Multiregion (GDM) lenses and Halo (HAL) lenses in controlling myopia progression.
Conducted a randomized double-masked controlled trial
Compared GDM lenses with HAL lenses
Evaluated myopia progression over one year
Both GDM and HAL lenses effectively controlled myopia progression
GDM lenses showed slightly superior efficacy in limiting axial elongation

Abstract

Both GDM and HAL lenses effectively controlled myopia progression over 1 year, with GDM showing slightly superior efficacy in limiting axial elongation. Trial Registration: Chinese Clinical Trial Registry: ChiCTR2200066890.

Myopia Control Efficacy of Grid Dimension Multiregion Spectacle Lenses: A One-Year Randomized Double-Masked Controlled Trial.

Key Points

Abstract

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