How do you diagnose retinal vein occlusions?
- Optical coherence tomography (OCT): This is a high definition image of the retina taken by a scanning ophthalmoscope with a resolution of 5 microns. These images can determine the presence of swelling and edema by measuring the thickness of your retina. The doctor will use OCT images to objectively document the progress of the disease throughout the course of your treatment.
- Ophthalmoscopy: The changes caused by RVO may be seen by examination of the retina with an instrument called an ophthalmoscope.
- Fluorescein angiography: This is a test procedure in which a dye that is injected into a vein in the arm travels to the retinal blood vessels. Special photographs allow the physician to see the vessels.