OCT

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4D OCT

Optical Coherence Tomography (OCT) is a non-invasive imaging test that uses light waves to take cross-sectional pictures of your central retina.

With OCT, each of the retina’s distinctive layers can be seen with details discernible to micrometres.

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Features

Accurate to 1/1000th of a millimetre

The Spectralis has the highest image quality of any OCT, allowing incredibly accurate detection of the exact location of problems and huge confidence in judging whether there is change occurring over time.

Unique Inbuilt Eye Tracking Technology

This allows us to monitor the health of your eyes accurately over time, regardless of head position and eye movement on future visits.

Trusted by NASA

The same model of OCT used in our practice is also used by NASA to assess the eyes of astronauts whilst in space.

Who is this recommended for?

Whilst we would recommend this to everyone, in particular it is a good idea for:

  • New patients – we then have a permanent record to compare against in future.
  • Those with a family history of glaucoma or of macula degeneration.
  • Anyone with signs which give suspicion of glaucoma or macula degeneration.
  • Those with a recent history of distortion to their vision or unexplained blurring.
  • People with an anomaly picked up with the Optomap.
  • Anyone with recent flashes or floaters – to check for a posterior vitreous detachment.

Macula Degeneration

By imaging the macula we can see if you have any signs of macula degeneration, macula holes or an epi-retinal membrane. These often can’t be seen by standard imaging.

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Glaucoma

Glaucoma is a condition that damages the nerve fibres at the back of the eye, and as this happens the thickness of the nerve fibres going in to the optic nerve is reduced.

  • OCT allows us to see the thickness of the nerve fibres as they go into the nerve, which is impossible to see with any other technology.
  • this thickness can then be compared to a database of normal to see if the nerve looks like one with glaucoma, and also against any past visits you may have had.

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