Single vision lenses only have one correction value. Especially from the fifth decade of life there are restrictions at different distances. The so-called vertex refractive index describes the focal length of the lens. A measuring device calibrated in DIOPTRIA, the vertex meter, is used to determine the vertex power. Toric/cylindrical eyeglasses are used to treat astigmatic ametropia. Astigmatism, astigmatism and astigmatism describe the same optical correction situation.

Spectacle lenses with slight reading or accommodation support, reading can be exciting, relaxing or entertaining. For your eyes, however, it is above all a challenge. A slight accommodation support in the lower area of the lens makes it easier for the eyes to adapt to the near distance. This saves you the fatigue of looking at the book or display (face down generation).

Relaxed on mobile phones, smartphones and tablets. We are spending more and more time in front of PCs, tablets and smartphones. Since 2017 we have been spending more time with digital media than with television. There is no such thing as "the" computer workstation, it should always look the same everywhere! Handheld devices cause different symptoms than stationary BAP use. PC & VDU workstation glasses with an extended field of vision offer more relaxed vision. Visual disturbances, stress, attention deficits, neck and back pain, which some people who wear glasses suffer from when using only reading or varifocal glasses, are avoided with VDU workplace glasses. The different variants: Close-up correction with a decreasing effect in order to still be able to recognize table utensils up to a distance of approx. 0.8 meters. Close-up correction with decreasing effect up to PC/BAP/monitor, usually up to a distance of approx. 1.5 meters. Near correction with diminishing effect for spatial distances, mostly up to 2 sometimes 3 meters, if more distance is required, normal varifocal glasses are better.

We are certified opticians for MIYOSMART MYOPIE glasses for children and teenagers. Impact & Technology is a single-vision lens whose front surface contains hundreds of small plus segments, all of which have a myopic defocus.

Depending on the point of view, varifocal lenses allow you to see clearly in the distance and up close. There are many descriptions of how it works, but one can say: Only this "multifocal" mode of action allows good vision at different distances without the hassle of changing glasses. Especially from the sixth decade of life. Most varifocal lenses are free-form varifocal lenses, the individuality and spontaneous compatibility is greater today than ever before. Ready-made varifocal lenses are being pushed out more and more, as the demands on vision are constantly increasing. The best lenses from Meister Optik: far and wide! The biometric and high-precision progressive lenses from Rodenstock, in which the length of the eye, corneal refractive power, anterior chamber depth, lens refractive power and the anterior vitreous body depth are included in the calculation. At first glance, you can't see the different optical effects on the lens. Even the best varifocal lenses in the world have a wider range of vision in DISTANCE and NEAR, and are slightly tapered in the transition zone.

Bifocal lenses have visibly delimited optical areas. With the so-called FRANKLIN lens, the dividing line goes straight across the entire lens. Most have a slightly sagged dividing line that is more cosmetically pleasing. -EDGE FILTER GLASS absorbs defined wavelengths of visible light. Which light is absorbed by the filter effect depends on the respective filter. Not every edge filter glass is suitable for road traffic!

Sports glasses Many do sports regularly, but a mountain biker has a different functional concept than a racing cyclist or mountaineer! Whether complete glazing or an inner clip solution makes sense can only be recommended after assessing the requirements. Glass properties Glass tints in yellow/orange increase the contrast. Bumps and ice sheets are much easier to see with polarized lenses. Polarizing lenses allow optimal visibility on snow, water and wet roads, they minimize reflections and flickering of smooth surfaces. This can also be important in mountaineering. Large glasses protect the eyes from UV radiation on all sides, rule of thumb: the UV intensity increases by at least 20 percent for every 1000 meters of altitude. Good ventilation prevents fogging of the eye-side surface.

In the mirror of the statistics it is clear: in 2019 the market share of mineral lenses was still 4%! Advantages and disadvantages: Compared to organic lenses, mineral lenses score points in terms of scratch resistance, transparency and temperature resistance. The disadvantages weigh heavily: resistance to breakage and thus the increased risk of injury. Silicate is FORBIDDEN on children, sports glasses and functional monoculars! Mineral can only be tinted with a few colors. The UV protection no longer corresponds to today's standard.

Aberrations are measured by generating a point of light on the retina and then measuring the wave front exiting the eye with a sensor. The measurement results collected for distance and near are taken into account for lens optimization. This fact is a unique selling point of Rodenstock.

In principle, a spectacle lens has no therapeutic effect! However, there are glasses that have been proven to offer great help and alleviation of the symptoms in the event of so-called phoric stress = incorrect alignment of the eyes.