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]]>The academy says that while excessive screen use will not cause permanent sight damage, this simple exercise can help prevent blurred vision, eye strain and headaches by forcing you to look at something other than your screen.
Source - Mail on Sunday June 27 2021
TEYES with computer lenses can help as well
Don't forget to check our Special Offers Page
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Single-vision lenses
Single vision lenses are the simplest form of lens. Concave lenses are used to correct short sight and convex lenses to correct long sight. Concave lenses
are thinner in the centre than they are at the edge and convex lenses are thinner
at the edge than in the centre. The curvature of the lens, its thickness
and weight will depend on how short- or long-sighted you are, the material it is
made from, the size and shape of the frame, and the distance between your
pupils. Most lenses are made of lightweight plastic and there is a wide
range of materials available to suit your prescription and lifestyle.
Bifocals and trifocals
All of us will develop presbyopia as we get older and will find it increasingly
difficult to focus on objects that are close to us. Reading glasses will help
but if you already wear glasses, it can be inconvenient to have to swap pairs in
order to see things at different distances. One solution is to wear
bifocal lenses, which give you clear distance and near vision in one pair of
glasses. The top of the lens corrects distance vision and the lower part
corrects near vision. As you tend to look down to read, you automatically look
through the correct part of the lens. There is a distinct dividing line between
the two parts. Trifocal lenses have three sections – one for distance, one for reading, and a middle part for intermediate vision. They have two dividing lines in the lens.
Varifocal or progressive lenses
Unlike bifocal or trifocal lenses, varifocal lenses have no visible dividing lines
between the different sections of the lens. The power of the lens changes
smoothly from your distance to your near prescription, allowing you to see
clearly at all distances.
High-index and aspheric lenses
High-index lenses are denser than conventional refractive index lenses,
and so lenses made of these materials are thinner than those made of
conventional materials. This is particularly important if you have a
strong prescription. Aspheric lenses reduce the distortion from the edges of
the lenses, and are also thinner and lighter than non-aspheric designs.
Scratch-resistant/hard coating
Plastic lenses are lighter than traditional glass lenses but they scratch more
easily, reducing the quality of your vision. Scratch-resistant coatings
protect against damage and prolong lens life, although they are not scratch
proof.
Anti-reflection coating
Glasses lenses can be treated with antireflection coatings to eliminate
distracting reflections from the lens surfaces. This is particularly helpful for
computer users and for night driving. Anti-reflection coatings also improve the
cosmetic appearance of your glasses and can help disguise the thickness of
your lenses.
Photochromic lenses
Photochromic (also known as sun-sensitive) lenses automatically darken when exposed to specific types of light, most commonly ultraviolet radiation. The brighter the sun, the darker the lenses become. They become clear again once out of the
sunlight. Photochromic lenses can be made of glass, polycarbonate, or another plastic. The performance of some of the older photochromic materials degrades over
time. If you notice that your photochromic lenses do not go as clear as they used to you should consider buying a new pair. When driving you may find your photochromic lenses do not become as dark as they do outside. Car
windscreens (and windows) filter and absorb most of the short wavelength
light (near UV) that would normally trigger the darkening process.
(Information provided by The College of Optometrists)
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Astigmatism Explained
Most people’s eyes are round like a football and light focusses on one area of the retina (the thin layer of tissue that lines the back of the eye). If you have astigmatism your eye is shaped a bit like a rugby ball. This means that the light focusses on more than one area of the retina so your vision is distorted (you may find it difficult to tell ‘N’ from ‘H’, for instance) or blurry.
Who is affected by astigmatism?
Like long-sight or short-sight, astigmatism is caused by the shape and size of your eye. It is very common and is easily corrected with glasses or contact lenses.
What are the symptoms of astigmatism?
Astigmatism can cause blurred vision, headaches and eyestrain (you may notice this after concentrating for a long time – on a computer, for example). Astigmatism normally occurs alongside short sight or long sight.
How do you treat astigmatism?
Astigmatism is a type of refractive error, and is corrected with glasses, or contact lenses to enable you to see clearly. If your astigmatism changes or you are having it corrected for the first time, you may find your glasses feel strange at first, whilst your brain gets used to seeing things with the astigmatism corrected
(Information provided by The College of Optometrists)
]]>When you go to get an eye test the optometrist will write you a prescription but they may not explain what it actually means. Here is a simple guide to help you understand it.
These are some fairly typical prescription formats. Click on the image to enlarge.
Sph (sphere) represents how long or short sighted you are. This can be positive (+) for long sight or negative (-) for short sight. The higher the number, the stronger your lens.
Cyl (cylinder) represents the amount of astigmatism present. Astigmatism distorts both your near and far vision and is caused by your eye being shaped more like a rugby ball than a football.
Axis indicates the direction of the part of the lens that corrects your astigmatism.
Prism – this bends the light without altering its focus. Prisms are used to help people whose eyes do not work perfectly together (i.e. they turn in too much, or turn out too much), which may cause eyestrain or double vision.
VA (visual acuity) refers to how clearly you can see shapes and detail from a set distance away (six metres in the UK), with your glasses on if you wear them. It is shown as a fraction and the higher the number, the better your visual acuity. For example, if you have a VA of 6/6, you can see really clearly and if your VA is 1/6, it means that you need to be a metre away from an object to see it as clearly as people can normally see from six metres away.
Add (or sometimes just reading or near) refers to the additional magnifying power needed in the bottom part of a multi-focal lens for reading and other close work. This is usually only needed for patients over 45, as focusing ability declines as we get older (presbyopia).
(Information provided by The College of Optometrists)
]]>Review from MymummyReviews
TEYES are great for anyone who loses their glasses!
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Like this pair of midnight blue frames, black side arms and clear head band
]]>Please note that we can fill most single vision prescriptions for the low price of £49.99 including the frame. However if your prescription requires more complicated lenses we will contact you to let you know the extra charge. You can then decide to either go ahead with your order or cancel your order and any money paid by you will be promptly refunded. If you would like to send your prescription to us first for checking please send a copy to amf@magneteyesuk.co.uk and we will respond as quickly as possible.
]]>Read more about this at http://www.bluelightexposed.com/
Blue light filter lenses can help to minimise the effect of blue light from our devices. There are several options available and you can see ours here:
http://www.magneteyesuk.co.uk/products/t-eyes-classic-with-computer-lenses
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