As the world's leading manufacturer of precision optics, ZEISS have combined technical expertise and innovative ideas into exceptional visual experiences.

ZEISS maintain that sight is the most important of the five senses: the complex interaction between the brain and our eyes helps us see the world around us and all its details throughout our lives.
That’s why excellent vision is essential when it comes to ensuring a high quality of life. Glasses play a major role in helping us achieve this aim.

At i2ioptometrist.co.uk, we're proud to partner with ZEISS Vision Care, together we are here to assist you in finding that perfect glasses and lens combination whether you're short-sighted or long-sighted.

 

 

To meet the challenges of everyday life, we need hard, dirt-resistant lenses that are easy to clean. This is precisely what ZEISS lenses offer with their hard, anti-reflective lens coating..

What makes ZEISS lenses with DuraVision® Platinum AR coating different?
These hard and light lenses are very robust, dirt-resistant and easy to clean while offering first-rate anti-reflective properties. An integrated system of coating layers densely packed using ion-assisted deposition results in a lens surface that is three times harder than the previous generation of hard anti-reflective (AR) coated plastic ZEISS lenses and 35 % harder than AR coated glass ZEISS lenses*. ZEISS lenses with DuraVision® Platinum AR coating also have a more cosmetically attractive, blue residual reflection colour that generates over 20% less luminous reflectance than conventional green AR coated ZEISS lenses.

1. More robust

 

Images on right show first show lenses without DuraVision Platinum, then lenses with ZIESS DuraVision Platinum.

2. Dirt-resistant

 

ZEISS' patented anti-static layers prevent the build-up of static electricity which stops dust and lint attracting to the lens surface. Therefore your lenses stay cleaner longer.

Images on right top show lenses without DuraVision Platinum then below the lenses with DuraVision Platinum.

3. Very easy to clean

 

The super-slick Clean Coat makes lenses very easy to clean. Lenses with high contact angles repel oil and water more effectively.

ZEISS lenses with DuraVision® Platinum AR coating have a contact angle of a minimum of 110° (lenses without super-slick clean coat: 95°).

Images on right show top image without DuraVision Platinum lenses then below with DuraVision Platinum

4. Anti-reflective properties

 

A less noticeable and blue reflection colour increases the light transmitted by the lens, resulting in even better vision.

These lenses show more than 20% less luminous reflectance than conventional green AR coated ZEISS lenses.

Images on right show lenses without DuraVision Platinum then lenses with DuraVision Platinum.

Discover the technology behind the hardest ever ZEISS lenses with DuraVision® Platinum AR coating

Three questions - three answers:

1. What exactly is a “hard” lens?

Lenses need to be robust enough to resist damage in daily life. The harder the lens surface, the more robust the lenses are.

2. How is lens hardness defined?

To find the best ways to make the hardest ever ZEISS AR coating for DuraVision® Platinum, we looked at:
- Other high-tech industries
- The everyday life of a spectacle wearer

3. How does DuraVision® Platinum perform in terms of hardness?

DuraVision® Platinum outperforms previous generations of ZEISS AR coatings in:
- High-tech hardness testing
- Real-life simulation tests
- The Bayer ratio

ZEISS undertake hardness tests using DIN ISO 14577

Following the measurement setup as described in DIN ISO 14577, ZEISS use an indentation instrument to determine two critical properties of DuraVision® Platinum.

First, they measure the hardness in a depth range of around 200 nanometers, the most critical range for visible scratches. To create scratches that extend to more than the critical 200 nm below the coating surface, much higher forces need to be applied for DuraVision Platinum than for conventional greenish ZEISS AR coatings.

At the same time, their team also measured the force needed to completely break the coating. The force needed to generate coating breakage is increased from 211 µN (conventional ZEISS coatings) to 316 µN.

High-tech equipment in the development of DuraVision® Platinum

The technology: a high-resolution nano-indenter

ZEISS improved the surface hardness and crack-resistance of the coating. They achieved this by using a new technology that has been used internationally in many different industries in which the hardness of material surfaces plays an important role, e.g. in the development and production of modern precision tools. But so far, it has not been applicable to lenses.

At the forefront of research, ZEISS sourced specialist indentation equipment that is precise enough for the extremely thin coating layers on spectacle lenses. This equipment has just recently been developed and was immediately integrated into the ZEISS research lab to help create the hardest ever ZEISS AR coating – DuraVision® Platinum.

SDWT (Standardized Dirt Wiping Test): The test that reflects real life: 600 wipes with 4kg pressure and ZEISS DuraVision Platinum lenses still look like new.

In daily life, most scratches occur when lenses are cleaned with a cloth that has dirt on it, either from abrasive dirt particles that are on the lens when the wiping starts or from dirt particles that are already in the cloth. In the SDWT we use an artificially soiled cloth to simulate damage caused by lens cleaning:

- Cleaning procedure using standardized dust to soil cleaning cloth
- Improvement in scratch resistance from previous generations of ZEISS AR coating to DuraVision® Platinum after 600 wipes with 4 kg pressure.

 

High-tech equipment in the development of DuraVision® Platinum

The technology: a high-resolution nano-indenter

ZEISS improved the surface hardness and crack-resistance of the coating. They achieved this by using a new technology that has been used internationally in many different industries in which the hardness of material surfaces plays an important role, e.g. in the development and production of modern precision tools. But so far, it has not been applicable to lenses.

At the forefront of research, ZEISS sourced specialist indentation equipment that is precise enough for the extremely thin coating layers on spectacle lenses. This equipment has just recently been developed and was immediately integrated into the ZEISS research lab to help create the hardest ever ZEISS AR coating – DuraVision® Platinum.

In daily life, most scratches occur when lenses are cleaned with a cloth that has dirt on it, either from abrasive dirt particles that are on the lens when the wiping starts or from dirt particles that are already in the cloth. In the SDWT we use an artificially soiled cloth to simulate damage caused by lens cleaning:

- Cleaning procedure using standardized dust to soil cleaning cloth
- Improvement in scratch resistance from previous generations of ZEISS AR coating to DuraVision® Platinum after 600 wipes with 4 kg pressure.

Qualified Optometrists and Dispensing Opticians

i2i Optometrists is registered with the General Optical Council to provide Eyecare Services. Our Senior Optometrist, Mr Stephen Gallagher holds a Honours Degree in Optometry and further Post Graduate Qualification in Independent Prescribing. This allows Mr Gallagher to clinically assess and prescribe medications for many acute eye conditions. Stephen was one of the first Optometrists in Scotland to achieve this qualification and continues to keep up to date with developments and Continuing Education. Mr David Wishart holds a Diploma in Dispensing Optics and works at our Howard St branch. David has more than 20 years experience in his field and is expert in ensuring your eyewear is to the very highest standard.

Scotlans largest collection of eyewear. Eye Test Glasgow. Ray Ban, Prada, Chanel, Bvlgari, Miu Miu, Oakley, Starck, Persol, Dita, Gucci, Cartier, Silhouette

Scotlands Largest Choice of Eyewear

Our i2i Optometrists practice at 153 Howard St holds the largest selection of eyewear in Scotland with more than 5000 frames to choose from. We stock brands such as Ray Ban, Tom Ford, Chanel, Dior, Prada and many other well known names. In addition our eyewear buyers have selected more niche collections such as Dita, Cutler & Gross and Face à Face. We are confident that you will find several frames to suit your face shape and style. We also cover all price ranges from entry level more functional styles at lower price points to the finest eyewear available.

i2i Optometrists | Glasgow Optician supplying lenses from Zeiss, Essilor, Hoya, Nikoon and more. Eye Tests available at three branches in Glasgow City. 153 Howard St, 183 Crown St and 982 Argyle St.

Lens Technology at its Best.

At the end of your eye examination our Optometrist will give you a recommendation as to whether you require glasses or not. Also if you currently wear glasses you will be able to experience how much difference a change in lens power will improve your level of vision.

We offer lenses from all the best suppliers such as Zeiss, Essilor, Hoya and Nikon. You can choose from entry level options right through to custom/bespoke varifocal lenses. For those with higher prescriptions there are thinner lens materials to help ensure your lenses are thinner lighter and provide the best possible vision and comfort.

i2i Optometrists | Glasgow Optician supplying lenses from Zeiss, Essilor, Hoya, Nikoon and more. Eye Tests available at three branches in Glasgow City. 153 Howard St, 183 Crown St and 982 Argyle St.
Latest OCT Optical Coherence Technology from Zeiss. The most advanced eye test equipment available. Eye Test Optician Glasgow.

Zeiss OCT ... Next Level Eye Examinations

This is a hospital standard carried out at i2i Optometrists Howard St. using the latest Zeiss equipment.

Many common eye diseases can develop without significant symptoms. Even if your vision and eyes appear perfectly fine, it’s useful to gain a full scan of your retina using an OCT scanner. This test takes a few minutes and is comfortable to undertake. In particular, an OCT scan can help to detect eye conditions like glaucoma, diabetes and age related changes to the retina.

Our Optometrist can look more closely at just how healthy your eyes are. The results are shown in 3D and provide much more information than ever before. The OCT examinations is part of the Free Eye Exam service at i2i Optometrists.

Zeiss Humphrey Visual Fiels Equipment help detect early signs of glaucoma also used to diagnose conditions such as stroke and other ocular manifestations of systemic conditions. Eye Test Glasgow. Optician

Glaucoma Visual Fields

All eye exams for those over the age of 60 include a detailed measurement of the visual field using the gold standard Zeiss Humphrey Field Screener.

This instrument is the same as used in Eye Hospital Departments. It is used to detect any visual field defects such as may be present in the early stages of Glaucoma or other conditions.

Our Optometrists can also monitor any visual field changes over time to assess progress. In conjunction with OCT this provides us with a comprehensive set of data to help ensure that your eye examination is as comprehensive as possible.

Zeiss Humphrey Visual Fiels Equipment help detect early signs of glaucoma also used to diagnose conditions such as stroke and other ocular manifestations of systemic conditions. Eye Test Glasgow. Optician

Howard Street Lens Lab

Our practice at 153 Howard St has an in house lens lab. Our Senior Technician, Cathal Mc Cauley has more than 20 years experience in this position and is experienced in all aspects from precision varifocal lens settings to pain staking assembly of fine rimless eyewear. Our lab is equipped with the latest, most accurate lens cutting equipment from Nidek and Essilor. Modern varifocal lenses are custom manufactured by Essilor and Zeiss and fitted to your chosen frame on site. However, we also hold a wide stock of single vision lenses and can offer an Express 2 hour service for many prescriptions.