http://www.hammondopticians.co.uk/wp-content/uploads/2013/06/3d-retinal-scanning.png 648 771 hammondopticians http://www.hammondopticians.co.uk/wp-content/uploads/2015/09/hammond-opticians-enfield.png hammondopticians2015-08-18 07:38:222016-04-26 14:30:18Can my optician’s retinal camera see beneath the surface of my eye?
Your retina (located in the back of your eye) is the only place in the body
where blood vessels can be seen directly. This means that it is vitally
important in detecting early signs of eye disease such as macula
degeneration and glaucoma. In addition signs of other diseases (for example,
stroke, heart disease, hypertension and diabetes) can also be seen in the retina.
Early signs of these conditions can show on your retina long before you notice
any changes to your vision or feel pain. While eye examinations generally include
a look at the front of the eye to evaluate health and prescription changes, a
thorough screening of the retina is critical to verify that your eye is healthy.
Retinal photography is a normal digital photo and is offered in many of the
larger retail-type opticians. The area of the retina that it covers is quite limited
– approx. 45 degrees, and depends more on pupil size, so to get a good image
eye drops may be needed to dilate the pupil. The flash it uses is very bright and
it can only show the surface of the retina. It is unable to show if there is evidence
of early disease in the inner layers.
OCT (or Optical Coherence Tomography) is a relative new development and is a
three dimensional cross-sectional imaging of the retina. It separates out the different
layers of the retina and images them on a micro level producing great detail. It is able
to view living tissue at a depth not accessible before and therefore as a diagnostic tool
for retinal problems it is of great benefit.
By careful measurement, it is able to detect the earliest evidence of many potentially
Sight-threatening diseases such as macular degeneration, macular holes, epi-retinal
membranes and even glaucoma.
It is completely painless and doesn’t require eye drops or even use a bright flash. It
concentrates on small areas of the retina and so is best used in conjunction with the
Click here for more information about the types of eye examinations we can offer,
or to speak to one of our eye experts, call us now on 020 8363 3578 or send us an email.