In Gidea Park we offer Digital Retinal Imaging - photographs will be taken of the back of your eyes, without the need for drops to dilate the pupil unless it is very small or too much cataract is present. This will give an enhanced view of your retinae to aid in the early detection of potentially sight threatening changes.
Your photographs will be held on file to enable comparison at future examinations.
However at Leigh on Sea we have a Laser retinal scanner . Whilst this takes a photo of the retina it also does much more:
Our Talia Wellness Laser scans produce:-
- A picture of the back of the eye
- A measure of the thickness of the nerve fibre layer at the optic disc
- A 3-d view of the optic disc
A harmless laser scans the retina resulting in an image of the surface similar to a photograph and will also measure the thickness of the retina at the macula to aid in the early detection of macular changes, including macular degeneration, and around the optic disc which can give early indications of glaucoma. The diameters of the veins and arteries can also be analysed to check for signs of raised blood pressure. It may be necessary to use drops to increase the size of the pupil if it is too small. If this has to be done you will not be able to drive for 5 hours afterwards.
Macular degeneration is a degenerative condition of the macula, the centre of the retina responsible for sharp, central vision. This can be either WET or DRY. Whilst only 10 - 15% of those diagnosed have wet AMD this is the type that can be treated and - the SOONER treatment is received the better the outcome. The RTA scans the macular and measures the thickness of the retina aiding in the early detection of any changes.
This is when damage is caused to the NERVE FIBRE LAYER of the retina resulting in loss of vision. It is normally detected by LOSS of VISUAL FIELD or RAISED PRESSURE.
The RTA scans the nerve fibres and can detect thinning of the nerve fibre layer BEFORE any loss of vision.
Because an image of the retina is produced as well as the measurements of the thickness this process will aid in the detection of any changes to the retina - for example diabetic retinopathy or changes due to hypertension (raised blood pressure)