![]() ![]() The OphthalmicDocs Fundus is born out of the open-source movement in software, which allows users to take a product, in this case an adapter for a smartphone, and modify it in ways they see fit. ![]() Russo says all the user will need to purchase is the housing that attaches to the phone, not an entirely new D-Eye lens system. This one is about 1 cm, and the 2.0 will be 0.5 cm.” “Since, as I said earlier, direct ophthalmoscopy is like looking through a keyhole, the closer you get to the keyhole, the wider the field of view, so the solution is to make the D-Eye slimmer. “We’re developing a D-Eye 2.0 with a much wider field of view,” Dr. We actually published a paper this year that described the agreement between the D-Eye system and the ordinary slit-lamp exam in diabetic retinopathy that found that the agreement was pretty good.”1įuture plans for the device are aimed at overcoming the current version’s limitations. For diabetic retinopathy, you can assess the retina out to the periphery and notice signs of diabetic retinopathy. In terms of conditions, it’s good for glaucoma screening because the optic nerve is easy to view. This isn’t intended to be a substitute for traditional equipment, but instead to help with exams in specific cases, such as bedridden patients, patients in rural areas and babies. “The D-Eye system is in the middle between direct ophthalmoscopy and high-end, expensive cameras. “The traditional system is the next level,” he says. Russo says that, though the device is useful, it’s not a substitute for a traditional retinal camera and direct ophthalmoscopy. You can’t go farther than the equator, but you can reach it as you can with an ordinary direct ophthalmoscope.”ĭr. ![]() Otherwise, if you only use still images, you could lose a few parts of the retina. In video mode, you can pan around the retina, from the fovea to the optic disk, then out to the equator, to catch all the details. Russo continues, “but I suggest recording video, since you have a limited field of view. “You can record still images or videos with it,” Dr. It really depends on the pupil’s dimensions. “This is because direct ophthalmoscopy is similar to looking through a keyhole, and the wider the keyhole, the wider the field of view. “It’s around 5 to 8 degrees with an undilated pupil, and 20 to 25 degrees with dilation,” he says. Russo says even babies are not bothered by the illumination. For a hyperopic patient, we use the camera’s internal autofocus system to compensate for the hyperopia.” Since a smartphone’s LED can be irritating to patients when held close to the eye, the D-Eye also has a diaphragm that dims the light, making it more tolerable. “We also use a couple of polarizing filters that are important for reducing the glare from the cornea, or the Purkinje reflection. “The mirror is used to reflect the light coming from the LED inside the smartphone and the beam splitter is for conveying the light into the patient’s eye,” Dr. The other components are a beam splitter and a mirror. The D-Eye uses a -10-D lens to compensate for any myopia a patient may have. Essentially, the D-Eye is a direct ophthalmoscope for viewing the retina using just a smartphone held close to the patient’s eye.”Ī collage of retinal images captured with the new D-Eye system. When I finished my residency program, I decided to use a few lenses to create the D-Eye project. “Now, we have the smartphone, which is a computer in your pocket. “About 20 years ago, they joined digital cameras with PCs in order to record the view of the retina in our offices,” Dr. The D-Eye Portable Retinal Imaging System (D-Eye, Padova, Italy) is a lens assembly that magnetically attaches to a late-model Apple iPhone or Samsung Galaxy.Īndrea Russo, MD, a practicing ophthalmologist and PhD candidate at Italy’s University of Brescia, invented the D-Eye. Here’s a look at how these devices work, as well as their benefits and limitations. If your practice’s technology budget is tapped out but you find yourself in need of a portable retinal imager to use for hospital rounds, nursing home visits or pediatric patients, you’re in luck: There are a couple of new phone adapters and apps that allow you to document retinal findings for under $500. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |