Preliminary evaluation of the VIsion PERformance (VIPER) simulator

Denise S. Ryan; Rose K. Sia; Jennifer B. Eaddy; Lorie A. Logan; Jide O. Familoni; Hind Beydoun; Samantha B. Rodgers; Bruce A. Rivers

doi:10.1186/s40779-020-0231-8

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Preliminary evaluation of the VIsion PERformance (VIPER) simulator

RESEARCH | Updated：2023-06-05

- Preliminary evaluation of the VIsion PERformance (VIPER) simulator
- Preliminary evaluation of the VIsion PERformance (VIPER) simulator
- MMR 2020年7卷第3期页码：312-323
- Affiliations：
  
  1.Warfighter Refractive Eye Surgery Program and Research Center, Fort Belvoir Community Hospital, Fort Belvoir, VA 22060, USA.
  2.Night Vision and Electronic Sensors Directorate, Fort Belvoir, VA 22060, USA.
  3.Department of Research Programs, Fort Belvoir Community Hospital, Fort Belvoir, VA 22060, USA.
- Author bio：
  
  * denise.s.ryan.ctr@mail.mil
- Funds：
- DOI：10.1186/s40779-020-0231-8
  中图分类号：
- 纸质出版：2020-09
- Accepted：
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Preliminary evaluation of the VIsion PERformance (VIPER) simulator[J]. MMR, 2020,7(3):312-323.

Ryan et al.: Preliminary evaluation of the VIsion PERformance (VIPER) simulator. Mil Med Res, 2020,7: 2
Preliminary evaluation of the VIsion PERformance (VIPER) simulator[J]. MMR, 2020,7(3):312-323. DOI： 10.1186/s40779-020-0231-8.

Ryan et al.: Preliminary evaluation of the VIsion PERformance (VIPER) simulator. Mil Med Res, 2020,7: 2 DOI： 10.1186/s40779-020-0231-8.

摘要

Abstract

Background:

This study evaluated the VIsion PERformance (VIPER) simulator's ability to assess the functional visual performance in warfighters conducting civilian and military tasks.

Methods:

Thirty service members

aged 25–35 years old with a best corrected distance visual acuity (VA) better than or equal to 20/20 or logarithm of the minimum angle of resolution (logMAR) 0.00

were randomized to locate and identify road signs and mock improvised explosive devices (IEDs) under either daytime conditions or with infrared imagery

with (cc) and without (sc) wearing their habitual correction. Participants also underwent binocular uncorrected (UDVA) and corrected (CDVA) visual assessment

refraction

contrast sensitivity testing and wavefront aberrometry.

Results:

The mean age was 28.47 years. The manifest spherical equivalent was –3.16±1.75 diopters (D)

the UDVA in both eyes (OU) was logMAR 0.83±0.47

and the CDVA OU was –0.11±0.06. For VIPER

the mean difference in the detection distance (DD) for road signs ccDD

. scDD was (76.7±52.8) m (

0.001). The average difference in identification distance (ID) ccID

. scID was (13.9±6.3) m (

0.001). The mean accuracies were 83.5% and 27.9% for cc and sc

respectively (

0.001). The regression analysis indicated that a 1.6 m change in the distance accounts for a 1% change in the accuracy (

=0.002). Without correction

a 4.1 m change accounts for a 1% change in the accuracy(

0.001). The average IED ccDD was (29.9±8.2) m

and that for scDD was (13.2±13.6) m (

0.001). The average IED ccID was (32.2±6.2) m and that for the scID was (7.4±10.3) m (

0.001). The mean IED identification accuracy was 46.7 and 11.4% for cc and sc

respectively (

0.001).

Conclusions:

The preliminary results reflect VIPER's ability to assess functional visual performance when detecting and identifying signs and IEDs. Furthermore

VIPER is able to detect performance changes with and without correction.

关键词

Keywords

references

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