Authors
MORSE, STEPHEN E. OD, MPH, PhD, FAAO; JIANG, BAI-CHUAN PhD, FAAO

Oculomotor Function After Virtual Reality Use Differentiates Symptomatic from Asymptomatic Individuals

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Abstract/Introduction

Abstract

Some individuals who use virtual reality (VR) head-mounted displays (HMD) have adverse visual symptoms.

 

Purpose 

We measured oculomotor functions of symptomatic (n=10) and asymptomatic (n=10) individuals to determine if there were fundamental oculomotor performance differences. Method. Before and after 20 min of biocular VR- HMD use, we measured: phorias, fixation disparity, gradient accommodative convergence to accommodation ratio (AC/ A), stereopsis, and near point of convergence.


Conclusion/Results

Results 

We observed an exophoric shift in the near point phoria of almost all subjects, whereas the farpoint phoria showed no trend. Interestingly, we observed that the phoric shift at far and near was highly correlated for the asymptomatic subjects but not for the symptomatic subjects. In addition, the (stimulus) AC/ A ratio of symptomatic subjects was reduced after a period of VR- HMD use, whereas asymptomatic subjects' AC/ A ratio was not reduced.

 

Conclusion 

The oculomotor changes among the symptomatic subjects (increased exophoria at near and reduced AC/ A) appears consistent with a reduced accommodative response. In contrast, the asymptomatic subjects show changes (correlated change in phorias) which seem most consistent with adaptation in the tonic component of vergence and/ or accommodation


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Testimonials


My eight year old daughter was terrified to go to the eye doctor for fear of her eyes being dilated. The doctor was SO KID friendly! He immediately made her comfortable by engaging her in conversation. It was a geat experience.


Joya B.

Dr. Garbus spent an amazing amount of time to solve my very complicated visual problems. Over the years he has continually achieved results beyond what others felt possible. He is always up to date on the latest science. He is great!


Dolores K.

Family Vision Care Valencia makes it so easy. Staff is knows what they are doing and Dr. Garbus is thorough and kept me well informed during the exam.


Kristy B.

I have been coming to Family Vision Center for almost 20 years. Dr. Garbus has been able to help my vision when other doctors could not. Now my kids see him as well. I highly recommend this office!


Autumn C.

The Doctor is very good. I felt on this visit he seemed rushed. I had questions to ask him but he was already with another patient. I still do not know if my eyes are the same , worse, or better.


Howard B.

All the staff is friendly, helpful and knowledgeable, and has been for all the years I have been going there.


Mary Ann H.
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