Get the best protection for your eyes

Eyes are very sensitive and completely irreplaceable: Hazards to the eye are many and can have disastrous consequences.

Anything could happen to our eyes in an instant, whether at the workplace or while engaging in recreational activities and sports. Our sight organs are too valuable to expose them to any unnecessary hazards. Opt for proper care and be on the safe side.

Our eyes are exposed to all manner of risks. The power of the sun’s rays is not to be underestimated. Naturally, they entice us outdoors, they shine on the sea and they put a smile on our face. But where there is a bright side, there is also a dark side. Ultra-violet rays, called UV rays for short, can be especially harmful to our eyes.  

Sun Protection for our Eyes

Sunlight is the most significant source of UV radiation and can damage various ocular tissues. The surface of the eye (which can be subject to snow blindness), the lenses (which can develop cataracts, also known as opacity) and the retina (subject to solar maculopathy and macular degeneration) are in particular danger.

UV light consists of UV-A light (which leads to skin tanning, but also skin aging), UV-B light (which leads to sunburn and skin cancer) and UV-C light (the most dangerous rays, but which are almost completely blocked by the ozone layer).

What almost no one knows: Eyes can also get sunburned. The cornea and the conjunctiva are most affected. The highest risk is always when the sunlight is heavily reflected, something that can occur in a snow-covered landscape or when spending time by or in the water.

With the right glasses, however, everyone can protect their eyes from dangerous UV rays. What you should keep in mind when purchasing a pair of sunglasses:

  • UV light protection: Sunglasses that absorb at least 99% of UV rays or light rays up to 400 nm.
  • Yellow filter: Also called blue blockers because they block all blue light. As a result, the eye perceives the surroundings in a yellowish tint. Benefit: Better contrast for very distant objects, especially on a cloudy or snowy day. Best suited for skiers, hunters, sailors and pilots.
  • Polarization filters:They block diffused light; for example, light reflected off water surfaces or cobble-stone pavement.
  • Particularly useful for driving and fishing.
  • Mirror lenses: They reduce the quantity of light reaching the eye, but do not offer any safe protection from UV radiation.
  • Side protection: Sunglasses with this function protect the eyes from light entering from the sides.
  • Gradient tint lenses:They are dark-colored in the upper part of the glasses, light-colored in the bottom. They thus block the glare from above, but permit normal downward vision for the eyes. They are useful for drivers, but are not recommended for the beach or in snow because a strong glare can come from below.
  • Photochromic lenses: They darken automatically when it is bright and lighten when it is dark. Depending on the UV radiation and the temperature, these processes often take well under five minutes thanks to new technologies.

Eye protection is also often recommended for medical reasons. This primarily applies to people with increased UV radiation risk. These include:

  • Patients with macular and retinal degeneration. They should always wear glasses with a good UV filter when spending time outside.
  • Patients after a cataract operation. These patients’ eyes are particularly sensitive to UV light because the natural lens has been removed and has been replaced by a plastic lens (intraocular lens). Sunglasses with 100% UV protection are necessary with older models because they absorb very little UV light. New intraocular lenses now have UV protection.
  • Patients who are taking certain medication. Medication for psoriasis and active pharmaceutical ingredients such as tetracycline, doxycycline, allopurinol and phenothiazine are all so-called “photosensitive medications.” They increase the eye’s sensitivity to UV light. Your doctor will advise you about appropriate eye protection.  
The ZEISS Online Vision Check How well do you see contrast and colors? Check your vision quickly and easily here!

Eye Protection on the Job

Special protection for the eye is also very important for certain occupations. The following pose a hazard:

  • Dust, splinters, shavings or liquid particles can develop during grinding, sandblasting and cutting work as well as caulking and chiseling work. Working with explosive-actuated tools, fluid apparatuses or steam-jet degreasers is also dangerous;
  • Corrosive or irritant substances, for example when working with acids and alkaline solutions and when mixing and applying adhesives and coating materials using the spraying and spray coat method;
  • Blinding light or damaging radiation, for example when welding and working with lasers;
  • The effect of heat or flames;
  • Laser radiation
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