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    Portable imaging system captures quality images

    Technology pairs traditional ophthalmoscopy, optical device attached to smartphone

    New technology has been paired with the time-tested technique of direct ophthalmoscopy to create a portable, retinal imaging system (D-Eye, D-Eye S.r.l.) that utilizes a small optical device magnetically attached to a smartphone.

    High quality color digital images and videos of the retina can be recorded, retained, and shared conveniently and inexpensively, said Andrea Russo, MD, who developed the device. Dr. Russo is an ophthalmologist in private practice and a PhD candidate researcher at the University of Brescia, Italy.

    The imaging system taps into physicians’ widespread adoption of smartphones to produce a portable fundus camera to offers an alternative to conventional retinal imaging systems, according to Dr. Russo, who also founded the company with offices in Padova, Italy, and Pasadena, CA.

    The system’s external lens redirects the camera’s light to eliminate corneal glare which can affect the quality of images obtained with a standard ophthalmoscope. The magnetic bumper aligns the device’s lens with the camera and the phone’s LED light source to record an examination.

    When positioned 1 cm from the pupil to take direct images of the posterior pole, the field of view is slightly larger than that of an ophthalmoscope: 5 to 8º with a single undilated pupil image, and 20º or greater with a single dilated pupil image.

    The device also takes advantage of smartphones’ autofocus capabilities to compensate from -10 to +5 D and produce clear images. The device can obtain views of the optic disc with pupils as small as 2 mm.

    By using a phone’s video function to expand the field of view, an acquisition protocol can be taken starting at the posterior pole and moving to the upper, nasal, inferior, and temporal peripheral retina to the equator.

    Recorded images and videos can be saved to the company’s HIPAA-compliant, cloud-based patient record system with a subscription service available in the United States.

    Multiple applications

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