OPTICAL COHERENCE TOMOGRAPHY

Optical coherence tomography (OCT) is a diagnostic method that enables consideration of cross-sections of the inner structure of the tissue, measuring the high-resolution echo time delay of reflected light and the intensity of tissue structure

Optical coherence tomography (OCT)  is an established diagnostic method that enables consideration of cross-sections of the inner structure of the tissue, measuring the high-resolution echo time delay of the reflected light and the intensity of the tissue structure. In this way “optical biopsy” of the tissue is achieved without excision and visualization of tissue morphology in real time, under the control of the examiner.

The equipment used allows the examiner to see the eye fundus using a camcorder. The wavelength of the light beam is approximately 800 ƞm, which means that patients can hardly see this brightness and therefore feel minimal discomfort during the examination.

Recording is done directly, by directing the light beam towards the retina. OCT provides topographical way of presenting the thickness of the retina and nerve fiber layer which can be directly compared with the finding on the eye fundus!

Indications for OCT diagnosis are very numerous, and some of the most common include:

  • Any changes or suspected changes in the macula (the part of the retina responsible for clear vision)
  • Senile macular degeneration
  • Cystoid Macular Edema
  • Rupture of the macula
  • Epiretinal membrane
  • Diabetic retinopathy
  • Retinal vein occlusion
  • Serous central retinopathy

In addition to establishing the right diagnosis, OCT has a great importance in monitoring the effects of therapy. In modern ophthalmologic practice OCT has an irreplaceable role in the diagnosis of glaucoma. Changes in the optic nerve and the thickness of the layers of nerve fibers of the retina can be accurately detected with the help of this method. It also allows an insight into the effect of anti-glaucomatous therapy and progression.

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