Street with i.Scription

Did You Know…

…that ZEISS Can Measure the Human Eye With an Accuracy of One Hundredth of a Diopter?


It is a familiar situation: The rain is beating against the windshield, blurring traffic signs and lane markings. The glaring lights of the oncoming traffic blind you. With the utmost concentration, you maneuver your car in the inky darkness past a large construction site. But you can barely see the lines on the road. By the time you finally reach your destination, you have firmly decided to never drive at night again.

Many eyeglass wearers feel like their vision is impaired when driving at night even though their glasses give them good vision during the day. The cause for this is usually visual impairments that are not recognized during a conventional eyeglass exam. After all, a problem cannot be corrected unless it can be reliably detected. The new i.Scription lens optimization procedure from ZEISS comes to the rescue. A special measuring machine analyzes the human eye down to a hundredth of a diopter, i.e., 25 times more precisely than any other measuring procedure before. Moreover, this technology records vision defects that hitherto have been left unidentified, so-called “higher order” visual impairments. These are responsible for poor vision in twilight conditions and at night.

The eye exam conducted by the optician is followed by two additional steps: ZEISS calculates the eyeglass lenses by means of a new mathematical procedure, then manufactures them with optimal precision. You are probably wondering what the difference is compared to a normal eyeglass lens, right? i.Scription is high-tech ophthalmic optics. It is not just the analysis that involves accuracy down to one hundredth of a diopter, but also the eyeglass lens production itself. In this way, complex visual impairments can be corrected using optimal lenses, with nighttime visual performance improving considerably as well. This will help get you safely to your destination even in the dark or at dusk.

25 August 2008

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