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Intravitreal Injection
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B-scan Ultrasonography
Optical Coherence Tomography
Fluorescein Angiography

Optical Coherence Tomography

What is Optical Coherence Tomography?
Optical Coherence Tomography (OCT) is a non-invasive imaging technique used to evaluate the retina. The image is acquired using laser light to scan the retina and results in an image that shows the retinal layers in great detail. When looking at an OCT scan we see it as if the retina were cut in half and seen from the side. This allows all the layers to be visualized all the way back to the wall of the eye, the sclera.

OCT image of the retina allows for the detailed assessment of retinal layers
 
How are they helpful?
OCT’s can be useful in any condition that affects the macula, the center of the retina. While retinal damage is seen on clinical exam, being able to localize the damage to a particular layer of the retina can help further characterize the process. OCT’s can also be used to help determine how a condition is responding to treatment or progressing such as with Age Related Macular Degeneration and Diabetic Macular Edema. Lesions can be measured with the scans and in patients with Epiretinal Membranes and Macular Holes that can help determine if surgery is necessary and the expected response. 
 
How is the test performed?
The machine is mounted to a table and while placing the chin on a rest the head is held still and the eye looks straight ahead towards a fixation light. While focusing on the light, the scan is performed and takes less than 2 seconds. The data is processed and reviewed by your Retina Specialist 
Dr Kruti Dajee Dr Jawad Qureshi Dr Johnathan Warminski