Use of the Avegant Glyph Head-Mounted Virtual Retinal Projection Display to Perform Vitreoretinal Surgery

Edward Korot, Aristomenis Thanos, Bozho Todorich, Prethy Rao, Maxwell S. Stem, George A. Williams

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Objective: To evaluate the use of a novel retinal projection display in vitreoretinal surgery. Methods: The Avegant Glyph virtual retinal display, which uses a light-emitting diode and micromirror array to project directly onto the retinas of the user, was evaluated. This unit was modified for better operating room characteristics. It was evaluated by 6 surgeons performing mock vitreoretinal surgeries. Results: The majority reported high 3-dimensional (3-D) depth rendition, little hindrance to communication, and high confidence to perform procedures. Due to a small ocular size, surgeons conveyed that the Glyph provides a novel enhanced view for performing procedures benefiting from simultaneous intra- and extraocular visualization such as scleral depression. Safety analysis by performing fundus autofluorescence after 2 hours of Glyph operation did not reveal any gross qualitative change. Conclusion: Use of the Avegant Glyph to perform vitreoretinal surgery may provide ergonomic advantages, while its visualization and high 3-D stereoscopic depth rendition instill high surgeon confidence to safely perform procedures. We are performing further studies with objective data to validate the potential of this technology.

Original languageEnglish (US)
Pages (from-to)22-25
Number of pages4
JournalJournal of VitreoRetinal Diseases
Issue number1
StatePublished - Jan 1 2018


  • display
  • head-mounted display
  • retinal projection
  • surgical devices
  • vitreoretinal surgery

ASJC Scopus subject areas

  • Ophthalmology


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