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Your eye examination at Clive Williams Opticians


A regular examination is fundamental to the health of your eyes. For most people, an eye examination every two years will be enough for us to monitor your eye health and make recommendations for the management of your eye care.

More regular examinations may be recommended if your clinical requirements make it necessary. This is something we can discuss with you.


Your examination will be based on your prescriptive needs. A typical eye test will last between 30 and 45 minutes, but may be longer if more specialized testing is required.

In addition to checking your sight, your optometrist will test you for common ocular conditions like Glaucoma, Macular degeneration, and Cataracts. As many of these diseases are largely asymptomatic, it is important that they be regularly checked.  

At the end of the examination, your optometrist will have a chat with you about your results, and answer any questions you might have. At this point you will be made recommendations based on the results of your assessment: for example, your optician may prescribe glasses or contact lenses.

If a follow-up appointment is necessary, we will do our best to see you again at your earliest convenience.

Swept Source Ocular Coherence Tomography

We have recently invested in an upgraded scanning instrument that can detect a number of common eye conditions, such as glaucoma, age related macular degeneration (AMD) and diabetic retinopathy, during a routine eye test. This state of the art instrument is called a 3D Optical Coherence Tomography system (3D OCT) and is manufactured by the world leading optical equipment manufacturer, Topcon. The Swept Source is the very latest version of our previous OCT which arrived in 2010. 

Ocular Coherence Tomography is an advanced eye scan for people of all ages. Similar to ultrasound, OCT uses light rather than sound waves to reveal the many layers that make up the back of the eye. This particular 3D OCT unit captures a digital photograph of the inner surface of the eye at the same time, so that areas of concern identified by the scan, can be cross referenced with the classic view of the back of the eye that your optometrist sees.

In other words, if you are looking at an iced cake before it has been sliced, you don’t know if it contains jam, cream or chocolate layers; equally if it’s lumpy or smooth. With this unique NON-INVASIVE technology our optometrist is able to see both the surface of the back of your eye (the top of the cake) and a three dimensional image of the layers that are beneath the surface.

Never before has it been easier to locate and identify eye conditions that affect the layers below the surface. We can then review the images on a PC screen and pin point areas of concern.

Using this machine, we can more confidently diagnose, manage or refer you to the Eye Department for further treatment, should this be required. For the majority of patients, OCT provides significant reassurance that the deeper layers of their eye are healthy.



  • Monday
  • Tuesday
  • Wednesday
  • Thursday
  • Friday
  • Saturday
  • Sunday
  • 9:00-17:30
  • 9:00-17:30
  • 9:00-13:00
  • 9:00-17:30
  • 9:00-17:30
  • 9:00-13:00
  • Closed


01970 611555


Clive Williams Opticians, 15 Baker Street, Aberystwyth, Ceredigion SY23 2BJ

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