Optical coherence tomography (OCT)

OCT is used to evaluate the anterior or posterior pole of the eye. It is indicated in all cases of blurred or distorted vision, depending also on other parameters.

What does optical coherence tomography involve?

From beginning to the end, an OCT examination takes 3-5 minutes. It is non-invasive and painless. Drops are instilled to dilate the pupil, then the patient places the chin on a holder and the eye must be kept open while the patient looks at a bright spot. This is performed one eye at a time, and the device takes images of the retina which it processes immediately, giving the result on the spot.

Your doctor will probably recommend an OCT examination if you have an increased risk of eye disease:

  • Age over 50
  • A personal history of certain eye disorders
  • A family history of eye diseases
  • Diabetes
  • High blood pressure

 

What disorders can be diagnosed with optical coherence tomography?

OCT can diagnose a wide range of disorders:

  • Glaucoma
  • Diabetic retinopathy
  • Retinal detachment
  • Age-related macular degeneration
  • Macular hole
  • Macular edema
  • Uveitis
  • Corneal injuries
  • Keratoconus
  • Optic nerve disease

OCT provides the optometrist with a lot of information about eye health. Whether you are at risk of eye disease or simply have a routine eye examination, OCT images are a tool that provides valuable insight.

Text medically reviewed by Dr. Teodor Holhoș, Ophthalmic Surgeon
Written by Dr. Holhos Team
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