![]() ![]() ![]() Thirty-degree images just barely capture both the optic disc and macula in one image. ![]() However, these images are limited in their scope and are largely falling by the wayside in favor of widefield fundus imaging that allows for visualization of the retinal periphery, not just the macula and optic disc. These 20 to 50 degree images can be acquired rapidly and provide painless, reproducible, and high-resolution views that are true to size and color. ![]() Standard color fundus photography continues to allow for the documentation of posterior pole findings including the macula and optic disc. This old standby has gone through several iterations in recent years that have increased its versatility and usefulness. It’s important to keep in mind that many of these imaging techniques and technologies are used in conjunction with each other to gain a fuller understanding of the extent of pathology in a given patient. In this article we’ll explore a number of current retinal imaging modalities and their broadened utilities. Additionally and importantly, the capture of clear retinal images allows for unambiguous communication between physicians and contributes to the education of trainees. Well-captured retinal images allow us to identify disease severity and stage, compare follow-up visit images to documented findings, track progression of disease between visits, and screen for pathology early. Better fields of view, image clarity/detail and modes of acquisition not only help during diagnosis of retinal disorders but also during screenings and follow-ups. The clinical utility of these imaging techniques is constantly expanding, with new developments in machinery allowing for improvements in patient care. Speak with an eye doctor near you if you have any concerns about your ocular health.A dvances in retinal imaging modalities allow us to visualize posterior segment findings to a previously unmet degree. If your eye doctor recommends a DRI test, you can rest assured that this is a relatively quick and painless test. In most cases, the DRI test is performed without any eye drops, but it’s always recommended to rest for a few minutes following the test, to allow the effects of the flash to wear off. The images are displayed on a computer screen for your eye doctor to review with you. A bright flash will be seen when the photograph is taken, capturing high definition images of your retina and optic nerve. Next, you will open your eyes as wide as possible and stare at an object straight ahead. Your eye doctor will then ask you to place your chin and forehead on supportive rests to help you keep your head still. Prior to beginning the test, your eye doctor may dilate your pupils with special eye drops. What should I expect during a retinal imaging test? If you think you will benefit from a DRI contact an eye doctor near you. Since the retinal blood vessels are the only blood vessels in the body that can be seen by a doctor, the DRI test is also being used to detect general health conditions. However, if you notice any changes to your vision, or vision loss, your eye doctor may wish to use a DRI test to rule out any ocular conditions that may be damaging your retina.Īdditionally, if you have been diagnosed with any of the following conditions, your eye doctor may recommend a DRI test: The DRI is now commonly performed as part of your regular eye exam. Retinal imaging facilitates early identification of the follow ocular diseases: Retinal imaging is not a substitute for a regular eye exam, but enables a wider, and more precise view of your retina for early detection of ocular disease. The images are stored electronically to allow your doctor to detect and measure any changes to your retina at each eye exam. Digital retinal imaging (DRI) is a quick and painless way for your eye doctor to look inside your eye and track changes to your ocular health and vision.ĭigital retinal imaging, also known as a retinal photograph, is a non-invasive, diagnostic tool that produces digital high resolution, colored images of your retina, optic nerve, and blood vessels in the back of your eye.ĭigital retinal imaging has become a vitally important test, used for early detection of ocular diseases. ![]()
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