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Driving Performance Under Peripheral Defocus Induced by Ophthalmic Lenses for Myopia Control.

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Myopia control spectacle lenses (MCSL) did not significantly impact driving performance in young adults, suggesting they are a safe option for myopia control. Further research is needed to confirm long-term effects on real-world driving safety.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Myopia control spectacle lenses (MCSL) are designed to slow myopia progression.
  • Peripheral defocus is a key mechanism in myopia development and control.
  • The impact of MCSL on driving performance, a critical real-world task, requires investigation.

Purpose of the Study:

  • To evaluate the effect of MCSL-induced peripheral defocus on driving performance.
  • To assess potential risks to driving safety associated with MCSL wear.
  • To determine if MCSL alter visual functions relevant to driving.

Main Methods:

  • Twenty young adult drivers (18-25 years) participated.
  • Peripheral visual acuity and contrast sensitivity were measured with and without MCSL.
  • Driving performance was assessed using a simulator with secondary visual tasks, yielding an overall driving performance score (ODPS).

Main Results:

  • MCSL significantly reduced peripheral visual acuity but did not affect peripheral contrast sensitivity.
  • No significant changes in ODPS were observed when wearing MCSL.
  • Central dynamic visual acuity and coherent dot motion detection correlated with ODPS, especially during demanding tasks.

Conclusions:

  • Despite negative effects on peripheral vision, MCSL did not impair simulated driving performance.
  • MCSL appear to be a safe option for myopia control concerning driving safety.
  • Long-term effects on real-world driving require further investigation.