28/08/2026
Excited to introduce the new myopia control defocus lens
Essilor Stellest 2.0
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JAMA Trial Confirms Highly Aspherical Lenslet Spectacles Slow Pediatric Myopia Progression by 71%
A newly published randomized clinical trial in JAMA Ophthalmology provides strong evidence that spectacle lenses incorporating Highly Aspherical Lenslets (HAL) can significantly slow myopia progression in children.
Published online on August 20, 2026, the study evaluated HAL spectacle lenses against conventional single-vision lenses over 24 months in U.S. children with myopia.
1. What Are Highly Aspherical Lenslets?
Highly Aspherical Lenslet (HAL) spectacles are specially designed myopia-control lenses containing numerous tiny aspherical lenslets distributed across the lens.
The lenslets are designed to create a myopic-defocus volume in front of the retina, providing an optical signal intended to slow excessive axial eye growth.
Unlike conventional single-vision spectacles, which primarily correct the refractive error, HAL lenses are designed to provide both:
Clear central vision correction
An additional optical signal for myopia management
2. What Did the New JAMA Trial Study?
The randomized clinical trial included 159 children aged 6–12 years with myopia.
Participants were randomly assigned to either:
HAL spectacle lenses: 77 children
Single-vision lenses (SVL): 82 children
The study was conducted across 9 investigational sites in the United States, with the 24-month analysis evaluating both refractive progression and axial elongation.
3. The 71% Finding
After 24 months, adjusted mean myopia progression was:
HAL: −0.25 D
Single-vision lenses: −0.90 D
This represented a 71% relative reduction in myopia progression with HAL lenses compared with conventional single-vision lenses.
The between-group difference was 0.64 D (95% CI, 0.50–0.79; P
