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Virtual reality training improves accommodative facility and accommodative range.

Dong-Yu Guo1, Yuan-Yuan Shen2, Miao-Miao Zhu1

  • 1Department of Ophthalmology, First Affiliated Hospital of Zhejiang University, Hangzhou 310000, Zhejiang Province, China.

International Journal of Ophthalmology
|August 3, 2022
PubMed
Summary

Virtual reality (VR) training can enhance accommodative range and facility. Short-term VR use may offer temporary vision improvements, but does not appear to reverse myopia.

Keywords:
accommodationmyopiavirtual realityvisual fatiguevisual function

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Area of Science:

  • Ophthalmology
  • Vision Science
  • Human Physiology

Background:

  • Asthenopia, or eye strain, affects many individuals, prompting research into novel treatment modalities.
  • Virtual reality (VR) technology presents a potential avenue for vision training and rehabilitation.

Purpose of the Study:

  • To investigate the impact of virtual reality (VR) training on various visual parameters.
  • To compare the effects of short-term versus long-term VR interventions on visual function.

Main Methods:

  • Sixty participants (18-60 years) with asthenopia were randomized into short-term (n=40) and long-term (n=20) VR training groups.
  • Visual acuity, spherical equivalent, accommodative range/facility, pupil size, and visual fatigue were assessed pre- and post-intervention.
  • Interventions included a single 15-minute session or 15-minute sessions 3-4 times daily for one month.

Main Results:

  • Short-term VR training significantly improved visual acuity, accommodative range, and facility, with pupil constriction.
  • Long-term VR training demonstrated significant improvements in accommodative range and facility.
  • Neither group showed significant changes in spherical equivalent or visual fatigue; myopia progression was not affected.

Conclusions:

  • VR training effectively enhances ocular accommodative range and facility.
  • Short-term VR interventions may provide transient visual benefits, possibly linked to light adaptation, but do not treat myopia.