Do You Need an OCT Scan at Your Next Eye Exam?
As advancements in eye care technology continue to evolve, patients may encounter various new diagnostic tools during their routine eye exams. One such tool is the Optical Coherence Tomography (OCT) scan. If you've been hearing about OCT scans, particularly the 3D OCT scan advertised by FYidoctors, LensCrafters and Specsavers, you might wonder if you need one at your next eye exam. This post will explain what OCT scans are, their history, the differences between various types of OCT scans, and why they are essential for diagnosing and monitoring eye conditions.
What is an OCT Scan?
Optical Coherence Tomography (OCT) is a non-invasive imaging test that uses light waves to take cross-sectional pictures of your retina, the light-sensitive tissue lining the back of the eye. An OCT scan allows your optometrist to see each of the retina's distinctive layers, helping to map and measure their thickness. These measurements help with the diagnosis and treatment of various eye conditions.
History of OCT Scans
OCT technology was first developed in the early 1990s. The innovation was rooted in the advancements in optical fibre technology and medical imaging techniques. The first clinical application of OCT was introduced in the mid-1990s, and it was primarily used in ophthalmology to image the retina. Over the years, the technology has been refined and improved, becoming more widespread in optometry clinics by the early 2000s. Today, OCT scans are a standard part of comprehensive eye exams, particularly for patients at risk of eye diseases. In fact, it's a requirement in Alberta that every optometry clinic has access to OCT technology.
The 3D OCT Scan: What is it?
Recently, you've probably seen large optical chains like FYidoctors, LensCrafters and Specsavers advertise 3D OCT scans, a more advanced version of the traditional or first-generation OCT scans. The 3D OCT provides a three-dimensional image of the retina, offering more detailed and accurate information about its structure. This advanced imaging can detect minute changes in the retina's layers, providing a higher diagnostic precision.
3D OCT scan showing signs of a central serous chorioretinopathy in a persons left eye.
However, 3D OCT scans are in no way a new technology; they've been standard equipment in most optometry clinics across Alberta for the last 10 years. And Helio Optometry has had 3D OCT technology since day one.
As noted above, 3D OCT technology is not new and special; it's a standard piece of eye care equipment that every optometrist in Alberta must have access to.
What Eye Conditions Can Be Detected by OCT Scans
An OCT scan is a versatile tool that can detect and monitor a wide range of eye conditions, including but not limited to:
Age-related macular degeneration (AMD)
Glaucoma
Macular edema
Macular hole
Retinal detachment
Retinal vein occlusion
Central serous retinopathy
Epiretinal membrane
Uveitis
Optic neuropathy
Optic neuritis
Retinitis pigmentosa
Choroidal neovascularization
Vitreomacular traction
Central retinal artery occlusion
Branch retinal artery occlusion
Stargardt disease
Best's disease
Plaquenil toxicity
These conditions can significantly impact vision, and early detection through OCT scans can lead to more effective management and treatment.
Coverage by Alberta Health Care
In Alberta, OCT scans and 3D OCT scans are covered by Alberta Health Care when they are required to diagnose or monitor an eye condition. This means if your optometrist deems it necessary to perform an OCT scan to assess your eye health, the cost of the scan will be covered by the provincial health care system.
Should You Get an OCT Scan?
Deciding whether you need an OCT scan should be based on your individual eye health needs and risk factors. If you have a family history of eye diseases, are diabetic, or are experiencing any changes in vision, an OCT scan can be a valuable diagnostic tool. Discuss your concerns with your optometrist, who can provide personalized advice and determine if an OCT scan is necessary for your next eye exam.
Final Thoughts
OCT and 3D OCT scans have revolutionized how eye care professionals like optometrists diagnose and monitor various eye conditions. With the advancements in 3D OCT technology (like those performed at Helio Optometry), patients can benefit from more detailed and accurate eye health assessments. If you're due for an eye exam, talk to one of our optometrists about the benefits of an OCT or 3D OCT scan and whether it's appropriate for you. Keeping up with the latest eye care technology is one of the ways Helio Optometry delivers the best eye care possible to our patients. Contact us today.
Disclaimer: The content provided in this blog post by Helio Optometry eye care clinic in West Edmonton is intended solely for informational purposes and does not replace professional medical advice, diagnosis, or treatment by a Licensed Optometrist. No doctor/patient relationship is established through the use of this blog. The information and resources presented are not meant to endorse or recommend any particular medical treatment or guarantee and outcome. Readers must consult with their own healthcare provider regarding their health concerns. Helio Optometry and its optometrists do not assume any liability for the information contained herein nor for any errors or omissions. Use of the blog's content is at the user's own risk, and users are encouraged to make informed decisions about their health care based on consultations with qualified professionals.
