SEEING THE WORLD BETTER
Spectacle lenses off the shelf?
Not with SEIKO.
Because we care too much about your eyes. We want excellent visual experiences with every spectacle lens and to make the highest demands on the material and its resistance. This is how we create the unique SEIKO spectacle lens quality that you won’t want to miss.
The secrets of your SEIKO lens
Register your card of authenticity and find out what’s behind your prescription. You will be surprised to see how much technology and precision fit into one single lens.
Tips for handling
Spectacle lenses seem to have a mind of their own. They do not like to be in the sauna, nor want to be put down on their lens surface. With a few little tricks you can enjoy your SEIKO spectacle lenses for a long time.
SEIKO ASSOCIATION
SEIKO is proud to be associated with SPECS network. SPECS (Specialist Providers of Eye Care Solutions) network is a nationwide group of opticians passionate about eyes. The opticians your eyes would choose.
WHAT MAKES UP A LENS?
A lens is made up of three components:
Design (or surface) – The lens is designed to the wearer’s prescription needs, whether that’s for distance, intermediate or near vision. Design options include single vision, reading, bifocal, trifocal, progressive or Varifocals and computer lenses.
Material – The look, weight and resistance of your glasses will depend on whether the lens is made from plastic, polycarbonate, high-index plastic or glass.
Lens technology – This is applied on either or both sides of the lens to enhance the features of the design and material. It can extend the longevity of glasses and improve clarity of vision. Options include photochromic, polarised, anti-reflective, anti-scratch and anti-smudge, and coatings that repel dust or water and combat fog.
CORRECTIVE LENSES
Normally, light rays bend (refract) evenly onto a small area of the retina to give a clear image.For people with refractive errors like myopia, hyperopia and astigmatism – the light is unable to focus on this area of the retina. Corrective lenses bend the light that passes through to the retina, adjusting its focus and enabling the wearer to see clearly again.
MATCHING LENSES TO CONDITIONS
Different lenses are required for different eye conditions:
Short-sightedness – Light rays fall short and focus in front of the retina, causing distant objects to blur. The lens to correct this issue is a ‘minus’ lens. This is concave (thicker at the edge, thinner in the middle) to bend rays outwards, allowing light to focus on the right spot to correct the vision.
Long-sightedness – Light rays focus behind the retina, causing objects at all distances, especially close up, to blur. In this case, a ‘plus’ lens is needed. This is convex (thicker in the middle, thinner at the edge) to bend rays inwards, allowing light to focus on the right spot to correct the vision.
Astigmatism – The cornea of the eye is oval, rather than round, so light is unable to find a single focus on the right part of the retina, giving a blurred image. Astigmatism could lead to short-sightedness, long-sightedness or both. To fix the vision, a cylindrical lenses is the most common way to correct astigmatism. This may also be minus or plus, depending on the type of astigmatism.
CHOOSING THE RIGHT LENSES
Not all lenses are the same.
Getting the right lenses is essential and should be your first consideration when choosing glasses.
