Damage causes the vessels to break and leak blood into your eye, causing the retinal tissue to swell and blur your vision. Diabetic Retinopathyĭiabetic retinopathy is a form of diabetic eye disease where high blood sugar levels damage the blood vessels in your eyes. You should see your eye doctor immediately if you experience changes in your central vision or lose the ability to see color and fine details. These vessels can rupture, leaking blood and fluid into the eye. This condition causes new blood vessels to grow under the retina. Wet AMD is a rarer but more severe form of this disease. You may notice blind spots in your central vision over time. The light-sensitive cells in your macula begin to thin until they die. AMD comes in 2 forms, wet and dry.ĭry AMD occurs when small protein deposits called drusen develop. Your macula can begin to wear down as you age, leading to vision loss. This area is called the macula, and it’s responsible for noticing fine details in your central vision. Age-Related Macular DegenerationĪge-related macular degeneration, known as AMD, is an eye disease affecting the central part of your retina. Glaucoma doesn’t typically show symptoms until your vision is affected, but OCT testing can help identify damage to your optic nerve. Visit your optometrist immediately if you experience: Angle-closure glaucoma can develop suddenly, leading to rapid vision loss. While open-angle glaucoma can lead to blindness, it’s typically a gradually progressing condition. The common types of this disease include open-angle and angle-closure glaucoma. Most forms of this disease increase your intraocular pressure (IOP), leading to permanent vision loss. Glaucoma is one of the leading causes of blindness in adults over 60, caused by damage to your optic nerve. OCT helps see changes in your optic nerve, helping to track disease progression. OCT can help your optometrist diagnose several eye conditions, including: What Diseases Can OCT Testing Help Diagnose? Afterward, they can recommend a customized treatment plan for your ocular needs. Your optometrist will look at these images when diagnosing any potential eye diseases. The OCT machine will scan your eyes for between 5 to 10 minutes while it creates your profile. You may receive dilating eye drops before your exam begins. What Should You Expect During an OCT Test? There’s no need to make any assumptions during an examination your optometrist can use the detailed images provided by this diagnostic tool. Your optometrist can understand the whole picture of your eye health with OCT. The captured images help your optometrist with the diagnosis and treatment of different diseases and the tracking of the retina’s healing process. Your optometrist can use this profile to measure your retina’s different layers and thickness. These reflections help build a profile of the eye, and a laterally scanning beam constructs a detailed 3D picture. The light waves transmitted during an OCT test bounce off the different depths within your eye. Your eye doctor can utilize OCT to help protect your eye health, but how does this technology work? How Does OCT Testing Work? Another benefit of this imaging tool is that it’s noninvasive, painless, and uses no radiation. It’s a powerful tool for your optometrist OCT can capture images in extensive detail, more accurately than MRI or ultrasound. Think of OCT as ultrasound testing using light instead of sound. Your eye doctor can map and measure the thickness of these layers. OCT allows your optometrist to see the specific layers of your retina through the use of light waves. Optical coherence tomography (OCT) is an imaging tool frequently used to take high-resolution images of the back of the eye, your retina. What is this diagnostic test, and how does it work? Continue reading to learn more about optical coherence tomography, including what it is, how it works, and what diseases it can help detect. One of the ways they check for eye diseases is with an optical coherence tomography test. Your optometrist conducts several tests during a comprehensive eye exam.
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