equipment and a continuous documentation procedure guarantee that the highest standards of quality are maintained at all times and in all production processes. Quality that meets the highest standards All [...] Union (EU) and the Federal Republic of Germany and therefore carry the relevant quality marks which are valid throughout Europe - as required by law. This means that you can be sure that you will always [...] product which meets the very latest safety standards. ISO certification Our high quality standards are maintained at all times and this is demonstrated by the fact that Eschenbach Optik has been awarded
remaining components of light are able to pass through the cut-off filters virtually unhindered. The areas between transmitted light (transmission) and filtered out light (absorption) are sharply distinct from [...] 380 nanometres to 780 nanometres. The short-wave, blue components of light are richer in energy than the red components and are refracted more strongly on refractive surfaces than long-wave light. How can [...] light source oscillate in waves which are scattered in all directions. A polarisation filter in a spectacle lens filters out all oscillating light waves which are not vertical, so that only vertically
15539-, 15549-, 15599-) are fitted with a retractable red reading line for easier line orientation and increased reading speed.The rectangular magnifier heads (Item No. 15806-, 15826-) are equipped with a s [...] edge-to-edge sharpness.Details relating to magnification/ dioptre value/ recommended eye-lens distance are stated on all magnifier heads.Bright, even illumination of the reading text provided by enclosed magnifier
15539-, 15549-, 15599-) are fitted with a retractable red reading line for easier line orientation and increased reading speed.The rectangular magnifier heads (Item No. 15806-, 15826-) are equipped with a s [...] edge-to-edge sharpness.Details relating to magnification/ dioptre value/ recommended eye-lens distance are stated on all magnifier heads.Bright, even illumination of the reading text provided by enclosed magnifier
a variety of test symbols are used by ophthalmologists and opticians. In addition to Landolt rings, Snellen charts, letters and numbers, symbols can also be used which are displayed at a specified distance [...] light must be focused on the retina. The better this process works, the sharper our vision - and we are then able to distinguish objects from each other with greater precision. Visual acuity is the sharpness [...] the retina. Reduced visual acuity Visual acuity is influenced by a wide variety of factors, which are determined not only by the eye itself but also environmental influences. The interaction of the eye
macular degeneration, albinism, optic atrophy, aphakia.The contrast-enhancing cut-off filter clip-ons are attached to the correction frame and can simply be flipped up where necessary.Glasses made of particularly [...] 511 nm, 527 nm, 550 nm cut-off, with or without polarisation.The lenses have screw attachment, they are not riveted.An ophthalmologic prescription is required before health insurance will meet the costs
macular degeneration, albinism, optic atrophy, aphakia.The contrast-enhancing cut-off filter clip-ons are attached to the correction frame and can simply be flipped up where necessary.Glasses made of particularly [...] 511 nm, 527 nm, 550 nm cut-off, with or without polarisation.The lenses have screw attachment, they are not riveted.An ophthalmologic prescription is required before health insurance will meet the costs
macular degeneration, albinism, optic atrophy, aphakia.The contrast-enhancing cut-off filter clip-ons are attached to the correction frame and can simply be flipped up where necessary.Glasses made of particularly [...] 511 nm, 527 nm, 550 nm cut-off, with or without polarisation.The lenses have screw attachment, they are not riveted.An ophthalmologic prescription is required before health insurance will meet the costs
macular degeneration, albinism, optic atrophy, aphakia.The contrast-enhancing cut-off filter clip-ons are attached to the correction frame and can simply be flipped up where necessary.Glasses made of particularly [...] 511 nm, 527 nm, 550 nm cut-off, with or without polarisation.The lenses have screw attachment, they are not riveted.An ophthalmologic prescription is required before health insurance will meet the costs
