OCT – Helping us see so much more

Our OCT Scanner is helping us see so much more to look after your vision and eye health


Good vision is something that most people take for granted, but we all only have one pair of eyes. At Allegro Optical we believe that eyesight is precious, it’s one of the senses we would struggle to do without.  Just as a regular MOT makes sure your car is safe and roadworthy, it’s good to keep a check on your eyes and eye health by having a regular check-up.

Here at Allegro Optical, we like to provide all our clients with the very best in eye care. This is why we are constantly investing in new equipment. We like to think we do more than just ‘sight tests’. We use a wide range of state of the art equipment and we’ll take a little longer than most.

Looking a little deeper 

We have recently invested in a piece of cutting-edge technology. A machine that can help us diagnose potential problems with your eyes much earlier than before. We have invested in a new Spectral Optical Coherence Tomography (3D OCT) machine, to offer state of the art scans to all of our clients. This cutting edge technology, in conjunction with our detailed eye examination, enables us to detect potentially sight-threatening problems much earlier than with conventional equipment.

The 3D OCT is a special machine allows us to scan your eye in great detail.  Allowing us to see tell-tale warning signs of conditions such as Age-Related Macular Degeneration (AMD), Diabetes, Glaucoma, High blood pressure, and much more. Previously, we have used retinal cameras to photograph the visible outer layer of your retina. The 3D OCT produces scans, not unlike an ultrasound examination. We will still take a retinal photograph where possible. But now we can also view all the parts of the eye which would not have been visible to your Optometrist previously.

How do I get a 3D OCT Scan?

When booking an eye test at Allegro Optical in Meltham everyone is offered the option to have a 3D OCT scan. The 3D OCT scanner takes high-resolution images of your eye. These will be kept with your clinical records so that your eye health can be carefully monitored at each visit. 

Managing Director Sheryl Doe says, “Our new 3D OCT scanner is one of the most advanced pieces of equipment available to hospitals and opticians. It produces high-quality images allowing us to build up a very detailed picture of your eyes at each check-up. Should the scanner detect anything unusual we would pick this up at the earliest opportunity. Thereby enabling the necessary referrals to be done as quickly as possible.”

For our diabetic clients, the 3D OCT scan is a further check that goes beyond the standard retinal screening provided by some hospitals. As the 3D OCT scanner can look through the layers of the retina. It can detect problems much earlier than retinal photography.

What else can a 3D OCT Scan Show?

Some of our clients would benefit from a scan of their eye blood vessels (angiography). Our new 3D OCT scanner produces high-quality images of the layers of blood vessels and capillaries in the eye. This can be particularly useful for clients with Age-Related Macular Degeneration (AMD) or Diabetes. In fact, a 3D OCT scan can provide an early warning of AMD and this can help ensure timely treatment is given.

The 3D OCT is a non-invasive machine. Just like the retinal camera, you place your chin on a rest. Your Optometrist will then get you to look at a target where a scan will be taken of your eye in a matter of seconds (50,000 scans per second!) This allows the 3D OCT to map out all your retinal layers and your eyes hidden soft tissue. The results appear instantly and your Optometrist can show you and talk you through all the results.

A 3D OCT examination generally requires no eye-drops and is a completely painless procedure with no puffs of air or bright flashes of light.  But if all this technology sounds a little bit scary, don’t worry. We’ll take the time to answer any questions you may have and to explain why we recommend taking each test.

AMD and Macula Scans

Examination of the central area of the retina called the macula. This is the most delicate part of the eye and offers the most sensitive vision. With our 3D OCT eye scans, we can now examine macula in 3D and cross-section.

These are most important for:

  • Macular degeneration (AMD)
  • Macular dystrophy
  • Family history of macular disease
  • Diabetes
  • Short-sighted people
  • Any loss of vision
  • In cases of head or eye injuries 
  • Smokers
  • People with unexplained visual problems
  • People with flashes &/or floaters
  • Other retinal or macular disorders e.g. Epiretinal Membrane and macular hole

Optic Nerve Scans

These scans show us the optic disc which connects the eye to the vision processing centres in the brain. The Optic disc is vital for maintaining healthy vision. We can examine the optic disc 3D, cross-section and G-cell mapping (the earliest indicator of glaucoma)

Optic Disc scans are most important for:  

  • Glaucoma sufferers
  • People with a family history of glaucoma
  • Anyone with high eye pressures
  • People with neurological conditions e.g. MS
  • Optic nerve disease e.g. optic neuritis
  • Other optic nerve disorders e.g. Optic Disc Drusen
  • People complaining of headaches
  • People with unexpectedly poor vision

Cornea and Anterior Scans

These scans allow us to examine the cornea and measure corneal thickness and clarity, as well as the patency of the eye’s drainage channels.

These are most important for: 

  • People who have closed-angle glaucoma
  • People with a family history of glaucoma
  • People with small eyes &/or who are long-sighted
  • People with a history of eye pain &/or headaches associated with blurry vision
  • People with high eye pressures
  • Contact lens wearers
  • Laser eye treatment – pre-surgery and post-surgery

Visual Reference & Measuring

With 3D OCT scans any area of the eye that may appear unusual can be measured and later repeat scans can be lined up with the original so that any changes can be monitored as accurately as possible way.  The scans enable us to differentiate between wet and dry types of macular degeneration, which can help us when making referrals for treatment. Many eye conditions can also be diagnosed with 3D OCT Scans and of course, it can also confirm that all is well and the eye is healthy.

In summary, our new 3D OCT Scanner is very versatile and for the first time allows us to check the health of your eyes beneath the surface of your retina, giving the earliest possible indication of your eye’s health.  We believe this will greatly enhance our ability to look after your eye health and visual system.

To experience the very best in eye care for yourself, simply make an appointment for your eye test with us. You can drop into our practice in Meltham or phone us on 01484 907090 or book online here.  We look forward to welcoming you.

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