About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out any material, long-term or laboratory tests. The tests are carried out by 1-2 independent consumers over a period of 7-14 days. The exact test conditions can be viewed in the test plan of the respective test report – click here to go directly to the test plan.

Manufacturers provide the tested products free of charge. We charge a one-off test fee for carrying out the tests. In addition, manufacturers pay an annual licence fee for the use of the Prüfengel seal. We also receive a commission for linking to manufacturers’ websites. These remunerations have no influence on our test results or ratings.

We guarantee transparency and a fair evaluation. For a detailed insight into our comprehensive evaluation process, please click here.

Gunnar
Blue Light Filter Glasses

Manufacturer’s product description

Long hours in front of a screen are part of everyday life today—whether working on a computer, gaming, or streaming. This is often accompanied by symptoms such as dry eyes, headaches, or visual fatigue. The Gunnar Intercept gaming and computer glasses promise targeted relief. According to the manufacturer, their patented lens technology is designed to block up to 98% of harmful blue light (at 450 nm) as well as 100% of UV radiation, thereby providing lasting eye protection. The model combines functional technology with a stylish design. The large amber lenses filter artificial blue light from digital displays, while an additional anti-reflective coating reduces glare. According to the manufacturer, this can not only alleviate short-term discomfort such as headaches or dry eyes, but also reduce long-term risks associated with intensive screen use.

Our test aimed to determine whether the craftsmanship, comfort, and filtering performance live up to the high expectations—and whether the investment is actually worth it for frequent users of PCs, tablets, and smartphones.

  • Comfortable to wear
  • High-quality construction
  • Reduces eye strain
  • No sustainability information

First impression

Packaging and Contents

Here, we take a closer look at the packaging. Sustainability is becoming an increasingly important factor. In addition, of course, adequate protection of the product must be ensured. Is the contents of the package complete, and does the manufacturer make it as easy as possible for me to use the product right away?

Here, we take a closer look at the packaging. Sustainability is becoming an increasingly important factor. In addition, of course, adequate protection of the product must be ensured. Is the contents of the package complete, and does the manufacturer make it as easy as possible for me to use the product right away?

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Product protection

Box is sturdy, product is adequately protected

100

Points

Sustainability of packaging

Unnecessary packaging waste has been eliminated; sustainable storage bag

100

Points

Package contents & scope

Complete, glasses and storage pouch

100

Points

Instructions

Product is self-explanatory

100

Points

OVERALL

100

Points

Weighting: 20%
*The maximum score is 100 points

The Gunnar Intercept comes in a sturdy cardboard box with a professional, high-quality design. The packaging is well-thought-out and reliably protects the product from damage during shipping. The glasses themselves are additionally stored in a microfiber storage pouch, while the temples are wrapped separately to prevent scratches.
A positive aspect is that the packaging is overall sustainable and minimalist. Excessive plastic elements are largely avoided, resulting in very little packaging waste. The package contents are complete: included are the glasses themselves as well as a microfiber pouch that can also be used as a cleaning cloth.
There is no traditional instruction manual included—which is not an issue, however, as the product is completely self-explanatory. All important information regarding the model, lens type, and specifications is printed on the packaging.
Overall, the Gunnar Intercept makes a very positive impression upon unboxing: high-quality presentation, sensible protection of the components, and an overall professional brand image. At first glance, the product already looks like a high-quality premium accessory for everyday digital life.

First time in hand

Product build quality and appearance

Before moving on to the practical test, we take a close look at the product’s build quality. How high-quality are the materials used? Are the feel and appearance satisfactory?

Before putting them to the test, we take a close look at the product’s build quality. How high-quality are the materials used? Are the feel and appearance satisfactory?

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Visual appearance

Attractive, modern design

100

Points

Workmanship

Very good workmanship, high-quality

100

Points

Stability

Very stable

100

Points

Product sustainability

No information

70

Points

OVERALL

93

Points

Weighting: 20%
*The maximum score is 100 points

The first time you put them on, the Gunnar Intercept impresses with its elegant and understated design. The frame is finished in matte black, while the manufacturer’s name and model number are subtly printed in silver. The slightly amber-colored lenses provide a stylish contrast and give the glasses a distinctive look.
The build quality is top-notch. The hinges feel sturdy and high-quality, opening and closing without any play or creaking. There are no visible manufacturing defects, rough edges, or material flaws. The frame feels robust without being overly heavy—on the contrary, the glasses are pleasantly lightweight.
The large lenses are evenly framed and show no optical distortions. While the manufacturer provides no specific information on sustainability, the durable construction and reusability at least indirectly suggest a sustainable product concept.
All in all, the Gunnar Intercept conveys stability, comfort, and high-quality craftsmanship right from the first moment—glasses that impress both functionally and visually.

Here are the results of our hands-on test

Does the manufacturer live up to its advertising claims?

Our practical test carries the highest weighting. Here, the product must undergo a wide variety of criteria and tests. We evaluate the functions and product claims of the test item.

Our practical test carries the highest weighting. Here, the product must undergo a wide variety of criteria and tests. We verify the functions and product claims of the test item.

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Comfort and Fit

Comfortable to wear, even for extended periods

100

Points

Reflectivityreduction

Reduces unpleasant reflections, reduces eye strain

100

Points

Lens uniformity

High-quality lenses, with no visible defects

100

Points

Durability Frame

High-quality and sturdy frame, good durability

100

Points

Cleaning

Easy to clean with standard cleaning products

100

Points

OVERALL

100

Points

Weighting: 45%
*The maximum score is 100 points

In practical testing, the Gunnar Intercept delivered a very impressive performance—especially during longer screen sessions. They are extremely comfortable to wear: the glasses sit comfortably on the nose without causing pressure points. Even after several hours at the computer or gaming, they remained comfortable.
The AmberMax lenses noticeably reduce eye strain. After just a short adjustment period, it becomes apparent that glare is minimized and contrast is slightly enhanced. The amber tint takes some getting used to at first, but it helps relieve eye strain. Especially during evening use, there was less eye fatigue and a more pleasant visual experience.
The build quality also held up in everyday use: The frame proved durable, and the hinges remained stable and wobble-free. The lenses showed no defects and had an even tint with no coating flaws.
Cleaning the glasses is straightforward. Fingerprints and dust can be easily removed with a standard eyeglass cleaner or glass cleaner.
Overall, the Gunnar Intercept leaves a very high-quality impression. It combines a robust design with effective blue light filter technology and high comfort—a highly recommended solution for anyone who spends many hours a day in front of digital screens.

Test Plan

You can find a detailed overview of the evaluation criteria for the practical part of the test as well as the scoring here. If you are also interested in the evaluation of our other test criteria, please read our document on the evaluation process.

Value for money

Finally, we examine how the product compares to the competition. Can it compete with the competition in terms of price and quality? Would we generally recommend purchasing it?

Finally, we examine how the product stacks up against the competition. Can it compete with the competition in terms of price and quality? Would we generally recommend buying it?

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Value for money

Very good performance in the lower price segment

70

Points

TOTAL

70

Points

Weighting: 15%
*The maximum score is 100 points

For comparable products, prices of up to€79.99are listed online. Very affordable products areavailablestarting at€34.99.Gunnar’s blue light filter glasses are therefore currently inthe upper price segment at€69.99.
The value for money is rated as very good. This rating takes into account both the high quality and performance as well as the price in the upper segment, resulting in a very good overall value.

Overall result

1. Packaging & Contents

20%

100

Points

2. Product Workmanship & Appearance

20%

93

Points

3. In practical testing

45%

100

Points

4. Value for money

15%

70

Points

TOTAL

94

Points

*The maximum score is 100 points

Blue Light Filter Glasses
 of the brand 
Gunnar
achieved
94
Points in our test and therefore passed. The test was carried out in the test period
02/26
and is stored in our database under the licence number
260128002
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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