Parallel line scanning ophthalmoscope for retinal imaging

Kari V Vienola, Mathi Damodaran, Boy Braaf, Koenraad A Vermeer, Johannes F de Boer

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A parallel line scanning ophthalmoscope (PLSO) is presented using a digital micromirror device (DMD) for parallel confocal line imaging of the retina. The posterior part of the eye is illuminated using up to seven parallel lines, which were projected at 100 Hz. The DMD offers a high degree of parallelism in illuminating the retina compared to traditional scanning laser ophthalmoscope systems utilizing scanning mirrors. The system operated at the shot-noise limit with a signal-to-noise ratio of 28 for an optical power measured at the cornea of 100 μW. To demonstrate the imaging capabilities of the system, the macula and the optic nerve head of a healthy volunteer were imaged. Confocal images show good contrast and lateral resolution with a 10°×10° field of view.

Original languageEnglish
Pages (from-to)5335-8
Number of pages4
JournalOptics Letters
Volume40
Issue number22
DOIs
Publication statusPublished - 15 Nov 2015

Keywords

  • Humans
  • Ophthalmoscopes
  • Retina/cytology
  • Signal-To-Noise Ratio

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