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Related Experiment Video

Updated: Jun 28, 2025

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

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Published on: February 23, 2018

Vergence-Accommodation Conflict: Increased Presbyopia in Virtual Reality.

Ying-Yin Huang¹, Marino Menozzi², Chia-Yen Lee³

¹Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan.

Klinische Monatsblatter Fur Augenheilkunde

|April 23, 2024

Summary

Head-mounted displays (HMDs) may increase visual symptoms, but they could also help with near work vision problems, especially for presbyopes. Performance was not significantly impacted by HMD use.

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Last Updated: Jun 28, 2025

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Area of Science:

Human-computer interaction
Visual perception
Ergonomics

Background:

Comparing visual task performance on PC monitors versus head-mounted displays (HMDs).
Investigating the impact of age on visual task performance and symptoms.
Assessing different viewing conditions (near and far) with HMDs.

Purpose of the Study:

To compare performance and symptoms during visual search tasks on PC monitors and HMDs.
To evaluate the influence of viewing conditions and age on visual task outcomes.
To determine the potential of HMDs as visual aids for near work.

Main Methods:

23 young and 23 older adults performed a visual search task.
Tasks were conducted on a PC monitor and an HMD at near and far virtual distances.
Recorded reaction times (RT), detection sensitivity (d'), and user-reported symptoms.

Main Results:

Viewing condition did not significantly affect reaction times or detection sensitivity.
User-reported symptoms were significantly dependent on the viewing condition.
Younger users reported more ocular symptoms than older users with HMDs in near vision, though not significantly.

Conclusions:

HMD use can increase visual symptoms.
HMDs may offer a partial solution for visual aid challenges in near work, particularly for individuals with presbyopia.