Interpreting the Macular OCT made Super Easy. What are the important steps? | OOLS |
Updated: Sep 30, 2020
Dr. Urmi Shah starts with the basics of optical coherence tomography (OCT) and the importance of OCT interpretation for all eye care practitioners. OCT is similar to ultrasound, except that it uses light waves. Dr. Shah specifies, in short, the working of the OCT machine. Then, she introduces the different OCT technologies available.
She talks briefly about OCT acquisition procedures, the types of scans, advantages, and disadvantages. We learn that on an OCT report, the three retinal nuclear layers appear hyporeflective (dark), and the other layers appear hyperreflective (white). We learn about the different locations where changes in the retina may occur and also the site of fluid collection. Changes in OCT are visualized through changes in reflectivity. Only fluid collection can cause hyporeflectivity, causes of hyperreflectivity changes are numerous. Then Dr. Shah walks us through the OCT interpretation for sign and symptoms of common retinal conditions, which includes
14:05 1. Age-related macular degeneration (AMD)
a. Dry AMD
14:40 i. Drusen
15:15 ii. Geographic atrophy
b. Wet AMD
16:08 i. Choroidal neovascular membrane
18:48 ii. Pigment epithelial detachment
20:15 iii. Disciform scaring
21:40 2. Vitreoretinal interface disorders
22:34 a. Vitreomacular adhesion
23:04 b. Vitreomacular traction
23:28 c. Macular hole
24:07 d. Epiretinal membrane
26:26 3. Cystoid macular edema
26:52 a. Diabetic retinopathy
28:17 b. Venous Occlusions
28:33 c. Pseudophakic cystoid macular edema
29:43 4. Central serous retinopathy
30:02 5. Arterial Occlusions
31:08 6. Retinal Thinning
31:26 7. Tractional retinal detachment
31:49 8. Solar retinopathy
Dr. Shah also shows images of extramacular lesions captured on OCT. She not only shows OCT images for all these conditions, but she also adds it’s clinical uses. She enlists steps to interpret the OCT systematically. We hear about different OCT machines, programs, and other clinical insights to enhance the use of OCT for patient care. Lastly, she talks about the recent most advances of OCT angiography and intraoperative OCT. The session is concluded with a question and answer session with the audience.
Watch the complete session below:
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