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Related Experiment Video

Updated: Jan 19, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
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Low-cost, smartphone-based frequency doubling technology visual field testing using a head-mounted display.

Karam AlRahman Alawa1, Ryan P Nolan1, Elaine Han1

  • 1Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA.

The British Journal of Ophthalmology
|September 19, 2019
PubMed
Summary
This summary is machine-generated.

A new smartphone-based visual field screening system offers a portable and cost-effective solution for glaucoma detection. This mobile virtual perimetry (MVP) device shows comparable results to traditional machines, improving accessibility for patients.

Keywords:
Field of visionGlaucomaTelemedicine

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Area of Science:

  • Ophthalmology
  • Medical Devices
  • Diagnostic Technology

Background:

  • Traditional visual field screening machines are often large, costly, and inaccessible.
  • Glaucoma screening requires accessible and affordable diagnostic tools.

Purpose of the Study:

  • To design and evaluate a novel, portable, and cost-effective smartphone-based visual field screening system for glaucoma.
  • To assess the performance of the Mobile Virtual Perimetry (MVP) Frequency Doubling Technology (FDT) system.

Main Methods:

  • Nineteen eyes of 10 primary open-angle glaucoma patients were tested.
  • Comparison between the MVP FDT and the Humphrey Zeiss FDT using the C-20 pattern.
  • Statistical analyses included Mann-Whitney, Bland-Altman, and linear regression.

Main Results:

  • No statistically significant difference was observed between the MVP FDT and the Humphrey Zeiss FDT (p>0.05).
  • Bland-Altman analysis indicated good agreement between the two devices.
  • Linear regression demonstrated a strong correlation in results.

Conclusions:

  • The MVP FDT is a viable low-cost, portable visual field screening device.
  • It yields comparable results to established systems like the Humphrey Zeiss FDT.
  • This technology can serve as an easily accessible screening tool for glaucoma detection.