Related Experiment Video
Updated: Feb 9, 2026

Usability Evaluation of Augmented Reality: A Neuro-Information-Systems Study
Published on: November 30, 2022
Usability study of a novel, self-lighted, disposable speculum: military applications
Christina L Jones1, Daniel D Gruber, William Warner
1Department of Obstetrics and Gynecology, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD 20889, USA.
Study Design:
Data collected from a postutilization questionnaire were used to evaluate the usability of the OfficeSPEC disposable vaginal speculum, specifically the effectiveness, efficiency, and acceptability, in clinical, hospital, and austere environments.
Results:
Usability data analysis showed the OfficeSPEC speculum had an effectiveness rating of 4.6/5, efficiency rating of 4.5/5, and acceptability rating of 4.6/5; overall usability in deployed environments was favorable. The overall rankings were 3.4 for plastic, 4.2 for metal (p < 0.001), and 4.5 for OfficeSPEC (p < 0.001). Cost analysis of the OfficeSPEC placed the disposable speculum as a reasonable alternative with yearly cost of $129,200, compared to traditional metal ($209,100) and plastic ($319,175).
Conclusion:
By evaluating the OfficeSPEC speculum within a usability framework, it proved to be practical, viable alternative in all environments, particularly in the forward deployed environment.
Related Concept Videos
Light Acquisition
Light as Energy
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
The Wave Nature of Light
Photoreceptors and Plant Responses to Light
Focusing of Light in the Eye
Photoluminescence: Applications

