Speaker
Description
Oz Vision is a new principle for visual display in which individual photoreceptors are directly stimulated to generate visual experience. An Oz Vision display bypasses constraints such as image formation by the eye’s optics and even the spectral sensitivities of the photoreceptors. To implement this principle, we use an adaptive optics scanning light ophthalmoscope (AOSLO), which corrects optical aberrations and enables precise delivery of light to targeted cone photoreceptors. The scanning architecture allows high-speed retinal imaging and tracking, as well as the delivery of carefully controlled microflashes to each cone across the region of the retina encompassed by the display. The display is small -- about twice the width of the full moon -- but can contain over 5,000 cones. This system enables new ways to study visual perception in both healthy and diseased eyes. We demonstrate two applications of Oz Vision: first, the generation of color sensations that lie outside the normal human color gamut; and second, the ability to test the perceptual consequences of cone loss—such as in retinal degenerative disease—by emulating specific patterns of photoreceptor loss in otherwise healthy observers.
| Keyword-1 | Adaptive Optics |
|---|---|
| Keyword-2 | Display Technology |
| Keyword-3 | Retinal Imaging |