It’s hard to make things out in the dark – meaning our eyes have to work overtime. Many people find it tiring to see clearly at night or in low light; some would even say they suffer from night blindness. Lenses that feature ZEISS i.Scription technology can help improve vision in low light conditions, thus providing crisper, clearer vision at night and in low light, reduced glare effects, more vibrant colours and improved contrast perception – even when driving at night.
Come evening, our eyes are normally pretty tired from everything we put them through during the day. If people also feel like they have to contend with night blindness, this can quickly lead to eyestrain – and not just when they’re behind the wheel. Light beams, for instance from street lamps, reflections like those in shop windows, and generally poor vision often compromise visibility. This causes many people to feel restricted or unsafe, making them less keen on being outdoors at night during the winter. Informally, people then often talk about what’s known as night blindness. This is what happens when the eyes don’t work at their best during the night, meaning people see things differently than they do during the day. Vision problems that go unnoticed during the day can therefore quickly become a hindrance in poor light.
How can we solve this problem? One solution are lenses that feature i.Scription® technology. They take into account vision problems that have thus far gone unnoticed in the lens design and deliver crisper, higher-contrast, more brilliant vision – particularly at night and in low light. They allow many people who wear glasses to see better and, thanks to their much more comfortable visual perception, mean people quickly feel comfortable with their first pair of glasses.
Even if we talk about night blindness to refer to poor vision in the dark or a tired, uncomfortable feeling, the term actually means something else. In fact, night blindness is a disease or the result of one. Those affected either see very little or not at all in the dark or in low light
In addition to the standard tests, which generally only measure the strength of vision during the day and at high contrast, an analysis using the ZEISS i.Profiler plus also takes into account changes in light, contrast, reflections and colours. This allows an assessment of a person’s visual acuity under different lighting conditions and contrasts. It’s as detailed as a fingerprint, but in practice a brief look at the system reveals all: the ZEISS i.Profiler plus uses wavefront technology via infrared light to generate a point of light on the retina and analyses the optical characteristics of the patient’s eyes. The light is subject to different deviations for each person and these are used to create a precise image of the eye and its properties.
This ensures that typical visual defects (e.g. short- and long-sightedness) are identified accurately as well as any higher-order aberrations – defects which significantly influence your vision at night and at twilight. Many of these vision problems cannot be detected using conventional measuring processes, such as spherical aberrations: rays of light are more strongly refracted at the edge of a lens than in the centre, which results in reduced contrast. Another higher-order aberration is the asymmetry error, whereby the rays of light are refracted in such a way that they create something like a light tail. If left untreated, both problems can result in poor vision in low light or at night.
In short, a test that combines classic subjective and objective refraction with the ZEISS i.Profiler Plus takes into account all the aspects related to vision. What’s more, while the first systems of its kind were only capable of analysing a few sections of the eye, the ZEISS i.Profiler plus can measure over 1,500 reference points per eye in just 60 seconds.Optometrist Jainta says: “We can use the measurement data to figure out how night vision can be improved.
For instance, we can see that someone who wears glasses and is short-sighted with a dioptre of minus 1.5 in a test performed during the day actually needs a dioptre of minus 2.0 when their pupils are dilated to be able to see more clearly and in higher contrast at night.”This results in a kind of optical map of the eyes – with plenty of information, which can improve night vision in particular. Uncorrected vision problems are a disadvantage, especially in poor visibility. Then again, if previously undetected vision problems are identified and corrected with a pair of glasses, this can result in better vision for wearers with low-grade night blindness or poor vision at night.
The ZEISS i.Profiler plus can measure over 1,500 reference points per eye in just 60 seconds.
Beyond your prescription, SmartLife® is designed for HOW you use your eyes while you’re connected and on the move. With intelligence augmentation (IA) we can personalise it even more with our INDIVIDUAL 3 lens design, incorporating information from our ZEISS i.Profiler Plus and ZEISS VISUFIT 1000.
Personalised down to the last cm.
The ZEISS Office lens design is adapted to your work environment and the distance – or distances – where you spend the most time looking. For sharp vision and relaxed eyes, ZEISS Digital Inside technology enables fewer head and eye movements while using your digital devices. With ZEISS M.I.D technology, your personal
near- to intermediate distance requirements
can be considered. This enables us to craft
truly bespoke lenses that are customised
down to the last detail of your unique environment and workplace habits.
The answer to every driver’s needs. This is the perfect
choice for medium to high light intensity levels.
Safety and comfort with:
Skylet® high contrast tint.
ZEISS DriveSafe with Polarised Skylet® Road:
The ultimate daytime driving lens.
Polarised Skylet®: Over 99% polarisation efficiency.
These are just some of the ZEISS sun lens solutions available.
We will guide you to the right sunglass lens to suit your needs.
