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Related Experiment Video

Updated: Jan 29, 2026

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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Myopia of Prematurity: Reduced Progression Using Highly Aspherical Lenslet Target (HALT) Technology.

Raffaele Parrozzani1, Carolina Molin1, Alessandro Carli1

  • 1Department of Neuroscience-Ophthalmology, University of Padova, 35128 Padova, Italy.

Journal of Clinical Medicine
|January 28, 2026
PubMed
Summary
This summary is machine-generated.

Highly Aspherical Lenslet Target (HALT) technology may slow myopia progression in premature infants. This study found HALT lenses reduced myopia of prematurity (MOP) progression compared to standard lenses, potentially lowering long-term visual impairment risks.

Keywords:
Highly Aspherical Lenslet Target (HALT)myopiamyopia progressionpreterm infantsretinopathy of prematurity

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Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Myopia Research

Background:

  • Myopia of prematurity (MOP) is a distinct refractive error in premature infants, distinct from school-age myopia.
  • MOP increases the risk of high myopia and lifelong complications.
  • Retinopathy of prematurity (ROP) is a common complication in premature infants that can be associated with MOP.

Purpose of the Study:

  • To evaluate the efficacy of Highly Aspherical Lenslet Target (HALT) technology in managing MOP progression.
  • To compare MOP progression in children using HALT lenses versus conventional single-vision lenses.
  • To assess the impact of HALT lenses on spherical equivalent (SE) and axial length (AL) in children with MOP.

Main Methods:

  • A comparative study involving 58 preterm children diagnosed with MOP.
  • Two groups were formed: one using HALT lenses and the other using standard single-vision lenses for 12 months.
  • Spherical equivalent (SE) and axial length (AL) were measured to track myopia progression.

Main Results:

  • Children using HALT lenses showed significantly lower SE progression (-0.32 D) and AL elongation (0.12 mm) compared to the standard lens group (-0.93 D and 0.46 mm, p < 0.0001) at 12 months.
  • The HALT group demonstrated a marked reduction in myopia progression indicators.
  • A statistically significant difference (p < 0.0001) was observed between the two groups.

Conclusions:

  • HALT lens technology appears to reduce the progression of myopia of prematurity (MOP).
  • These findings suggest HALT lenses may be a beneficial intervention for high-risk pediatric myopia.
  • Further research into HALT technology for specific high-risk subgroups is warranted to mitigate severe myopia and visual impairment risks.