![]() As the laser scans the retina in each eye, you may notice a red line moving across your vision. The OCT will scan each of your eyes, while you fix your gaze on a green target. During the test, you will sit with your chin resting on a support. The OCT scan uses light waves to create an image, similar to an ultrasound that uses sound waves to create an image. SEE RELATED: What Is a Digital Retinal Image? Schedule an appointment with an eye doctor near you, if you suspect you may have glaucoma or any other eye condition that an OCT exam can help detect. The OCT scan can also be performed in a dark room, which facilitates faster and more accurate results- especially when the position of the anterior angle in a darkened room is of utmost importance in the diagnosis of angle-closure glaucoma. The OCT provides cross-sectional images of the anterior angle, and facilitates detection of open-angle or angle closure glaucoma, as well as narrowing of the anterior angle, which can lead to angle-closure glaucoma. If the drainage channel is not working properly, it can lead to an increase in eye pressure, and cause damage to the optic nerve and vision loss. The anterior angle is the drainage channel for fluid inside the eye. The OCT scan is a useful tool in evaluating the anterior angle in patients at risk of developing glaucoma. ![]() OCT scans are used for diagnosis, management or treatment of a variety of ocular conditions: The images produced by the OCT scan are also a practical tool in helping patients understand the problem they may be experiencing, as the complication can be seen clearly and in 3D on the screen. The color-coded images provide a wealth of information to help your eye doctor measure the thickness of your retina and identify any optic nerve abnormalities. The OCT scan uses a laser (without radiation) to obtain higher resolution images of the layers of the retina and optic nerve. An optical coherence tomography scan (OCT scan) is a critical device for the early diagnosis of many serious eye conditions.Īn OCT eye exam is a non-invasive test that provides 3-D color-coded, cross sectional images of the retina to enable early detection and treatment of ocular disease that may develop without any noticeable symptoms. ![]()
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