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Short-Term Changes in Retinal Activity With Four Myopia Control Spectacle Lenses.

Paulo Fernandes1, Bárbara Marinho1, Rafaela S Alves-de-Carvalho1

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Summary
This summary is machine-generated.

Different myopia control spectacle lenses induce varied retinal functional changes. Lenses with widespread patterns, like HALT and Aura 6, show the most consistent effects on peripheral and inner retinal function, aiding myopia control strategies.

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Area of Science:

  • Ophthalmology and Optometry
  • Retinal Physiology
  • Myopia Control Research

Background:

  • Myopia control spectacle lenses aim to slow myopia progression.
  • Understanding their impact on retinal function is crucial for efficacy.
  • Different lens designs create unique peripheral defocus profiles.

Purpose of the Study:

  • To investigate how defocus from four myopia control spectacle lenses affects retinal function.
  • To compare the electrophysiological responses induced by different lenslet designs.

Main Methods:

  • Nineteen young myopic adults participated.
  • Four types of myopia control lenses were tested: Aura 3, Aura 6, DIMS, and HALT.
  • Retinal function was assessed using full-field electroretinography (ERG), pattern ERG, and multifocal ERG at baseline, 30 minutes, and 15 days.

Main Results:

  • Aura 6 and Aura 3 lenses showed specific ERG amplitude increases (a-wave and b-wave, respectively) by day 15.
  • All lenses caused short-term pattern ERG increases, with some designs maintaining higher responses.
  • HALT lenses demonstrated the most sustained amplitude increases in peripheral regions and reduced implicit times.
  • Aura 6 showed progressive but partially transient increases, while Aura 3 had delayed enhancements.
  • DIMS lenses induced early changes that diminished by day 15.

Conclusions:

  • Myopia control spectacle lenses induce distinct retinal electrophysiological responses based on their optical design.
  • Lenses with widely distributed patterns (HALT, Aura 6) most consistently altered peripheral and inner retinal function.
  • Optical defocus from these lenses can modulate retinal activity, potentially influencing eye growth regulation.