The LSDC Camera
Aeon Imaging has developed a low-cost and easy to use device, the Laser Scanning Digital Camera (LSDC), which records images of the back of the eye. The LSDC is a confocal line-scanning laser ophthalmoscope, protected by US patents and international patents pending. The LSDC is not currently for sale. Please contact us (email@example.com) to discuss collaborative opportunities.
|Time-Averaged Power at the Cornea|
|Field View of the Retina|
|Default Imaging Frame Rate|
|Default Target Fixation & Stimulus Resolution on the Retina|
In addition to the LSDC's screening and low vision applications, the LSDC has several other unique features:
Multiply Scattered Imaging Mode
The LSDC can finely adjust the offset of its confocal aperture with respect to the illumination light on the retina electronically in real-time. With a confocal aperture offset, the LSDC records images composed of multiply scattered light from the deeper layers of the retina, while rejecting the much stronger direct backscatter from superficial layers. The result is increased sensitivity to scattering defects such as drusen and to the presence of edema.
Refraction Using Structured Illumination Mode
The LSDC's illumination source is more commonly used in telecommunication applications that require intensity modulation. In structured illumination mode, the source is modulated while imaging, producing a sequence of stripes across the image. The contrast or amplitude of the stripes measured through-focus provides a localized point-spread function. When measured near the fovea, this mode provides auto-focus; when combined with peripheral point-spread function measurements, the topography of the focused light on the retina can be reconstructed. Common uses for topography include modeling peripheral refraction and detecting retinal thickening commonly associated with eye disease.