Frequently Asked Questions
We have collected the answers to the questions that may come up during the purchase on our site.
Colour Vision Test
How does the COLORON colour vision test work?
Before the test:
You can take the test with transparent prescription glasses, however please take off any tinted optics or sunglasses to ensure good vision.
Try to find a testing spot with constant, natural light without any fluorescent lighting. Avoid direct sunlight or too much artificial light.
Reset your computer display to the default lighting and turn off night mode.
The testing process:
It will take approximately 2 minutes to complete the test. Some parts of the test might be more challenging than others, this is totally normal. There is a detailed description & guidance throughout the test.
Result:
After finishing the test, the result will be seen immediately. If you provide your email address, we can send you a detailed description and customized recommendations for your colour vision condition.
Is the COLORON colour vision test accurate?
Yes, the COLORON colour vision test highly accurate. It detects if you have protan (red) or deutan (green) colour vision deficiency and identifies three levels of severity: mild, moderate, or strong. After taking the test and submitting your email address, you will receive an email with your deficiency type and a customised recommendation within 5 minutes. For best results, take the test in a well-lit environment and follow the instructions carefully. If you have any concerns, consult an eye care professional for a comprehensive evaluation.
I did the test and got my results. What can I do next?
I did the test and got my results. What can I do next?
After completing the test and receiving your results, you can easily order your colour enhancement eyewear:
Follow the recommendation: The test result offers your functional lens for colour differentiation and colour vision enhancement. Pick your lens, find your suitable frame and you are on the way for a new experience.
Consider lens options: Depending on your condition, you can choose different lens for different functionality. Also, you can pick sunglasses lens to enjoy a better colour vision in sunny atmosphere.
Consult an eye care professional: For a comprehensive evaluation and further guidance, you can visit an eye care professional. They can confirm your test results and offer additional solutions or coping strategies.
By following these steps, you can better manage your colour vision deficiency and improve your overall visual experience.
Our Products
How do COLORON lenses work?
We offer eyewear for red-green colour vision deficiencies.
In our eyes the red, green, and blue cone receptors are responsible for colour vision by forwarding their message to the brain. In case of red-green colour vision deficiency, the sensitivity of either the red or green receptors has shifted towards each other along the colour spectrum, so they detect different wavelengths than they should. This shift causes errors in colour perception and uncertainty in colour recognition.
The purpose of our lenses is to “reposition” the receptor that has shifted sensitivity. By using advanced colour-filter technology, the lenses support a better colour perception by effectively shifting the receptor’s sensitivity back in the correct direction. This is also why colour enhancement lenses are always tinted.
What should I be mindful of when using the product?
At first, your colour perception will probably be intense (depending on the colour of the tinted lenses), but after 5-10 minutes of adaptation, the colour balance should be restored.
It’s important not to remove or lift the glasses, and to wait until the white wall is white again – that’s when the adaptation period ends.
COLORON eyewear is recommended for use in daylight conditions only. Never use it for driving at dusk and at night.
How long can I wear the glasses in a day?
We recommend a gradual approach: 1-1.5 hours a day in the beginning, then try to increase it to longer periods. There is no practical maximum time limitation.
What should I do if I don’t notice any change?
Don’t worry, we have some tips for you!
Make sure that you wait for the 5-10 minutes adaptation time after you put on your eyewear (even when changing tinted lenses), and do not remove or lift it.
Try to use your eyewear more frequently and in different situations. It may take 2-3 weeks of practice and consistency to train your brain to achieve long-term adaptation.
How can I get prescription glasses?
Pick the Mix&Match clip-on frames if you need prescription lenses. The base frame comes with plano (non-prescription) lenses, which can easily be replaced with prescription lenses by your trusted local optician.
We recommend that a professional optician examine your eyes and provide the optimal prescription solution.
With your Mix&Match frame, you can easily switch between the colour-enhancement clips and wear them only when needed.
Please note that replacing the original lenses will void your warranty.
Does COLORON eyewear have UV light protection?
Yes, all our COLORON tinted lenses come with built-in UV protection. This feature helps protect your eyes from UV/A and UV/B rays, making them suitable for outdoor use. Our lenses not only enhance colour perception but also safeguard your eyes.
Does COLORON eyewear have blue-light protection?
The base lenses in our Mix&Match clip-on glasses have blue-light filtering.
How do I know if the colour enhancement glasses will fit me?
To ensure a proper fit of your colour blind glasses, we provide detailed measurements for each frame on our website, including lens width, bridge width, and temple length. We recommend comparing these measurements to your current glasses or use a ruler to measure your head size to find a suitable fit.
How should I care for my COLORON eyewear?
Please check how to care for your eyewear in the Instructions For Use.
Payment
Do I need to create an account when making a purchase?
Accounts are optional, and you can check out as a guest without having to create one. You can always create an account at a later date to see existing and past order(s) as long as you create this account using the same email address you used to place your existing and past order(s).
What payment methods can I use?
We accept all major credit/debit cards through PayPal and Stripe.
Do you offer any promotions or discount coupons?
From time to time, we may offer special, limited time promotions.
We offer a discount for our first-time buyers who subscribe to our newsletter. Also, seasonal discounts are available as you have your subscription. Make sure you check your mailbox from time to time.
How can I apply promotional vouchers/coupons?
After selecting and placing an item into your cart on the coloron.eu webshop, you can apply a valid coupon code on the checkout page. The amount or discount rate of the coupon will be deducted automatically from the final price.
Shipping
What countries do you ship to?
Currently we deliver free of charge to countries of the European Union & UK and only to territories on mainland Europe & UK: Austria, Belgium, Bulgaria, Croatia, Republic of Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden, mainland UK.
If you are a Hungarian resident: Since we have a network of 50+ local optician partners, we recommend finding the nearest professional to you for the best service. Unfortunately, this webshop does not ship to Hungary. Find the nearest optician here.
Unfortunately, we do not ship to the following territories of EU member states:
Hungary: Since we have a network of 50+ local optician partners, we recommend finding the nearest professional to you for the best service.
Denmark: Greenland, Faroe Islands
France: French Guiana, Guadeloupe, Martinique, Saint Martin, Mayoette, Réunion, French Polynesia, New Caledonia, Wallis-et-Futuna, Saint Barthélemy, Saint-Pierre-et-Miquelon, French Southern and Antarctic Lands
Netherlands: Curacao, Aruba, Sint Maarten, Bonaire, Sint Eustatius, Saba
Portugal: Azores, Madeira
Spain: Canary Islands, Melilla, Celuta
We are happy to ship to both residential and work addresses.
How much does shipping cost?
Shipping is free for standard delivery within the EU and the UK, however, the local VAT might differ.
Do you offer free shipping?
We offer free standard shipping throughout the EU and the UK, however, the local VAT might differ.
How can I track my order?
Once your paid order has been processed by us, we will contact you via email with the estimated time of delivery and the tracking number for your shipment.
How long will it take to receive my order?
We aim to dispatch your order no later than the next working day.
Orders placed before 12 PM CET Monday – Friday*, excluding holidays, will be delivered in 3-7 working days with FedEx.
*Any orders placed after the current business day cutoff, will be shipped the following business day.
I made a mistake during my order. Can I change it?
If you believe you made a mistake (e.g. entered an incorrect address), please get in touch immediately with our Customer Service Team at orders@coloron.eu as we are only able to make changes to the order until it is processed. There is unfortunately no way to make any adjustments once your order is dispatched.
Returns & refunds
What is the return policy for COLORON colour vision enhancement eyewear?
Your COLORON journey doesn’t end with your purchase — we want you to be completely happy with your eyewear. That’s why we offer a 60-day hassle-free money-back right to withdraw for all glasses purchased directly on coloron.eu.
All eyewear may be returned within 60 days of the order date for a full refund. Please note that we are not able to cover the cost of return shipping.
Please make sure to repack the item in its original condition, including all accessories and packaging. Returns that are incomplete or damaged may not qualify for a full refund.
Once your returned item is received, we will process your refund within a maximum of 10 working days. Your refund will be credited back to your original method of payment. Once your refund has been processed it can take up to 10 business days for your bank to process the credit and apply it to your account.
Check out the full COLORON Return Policy and learn how to return your order.
How do I return my purchase?
STEP 1: To initiate a return, please fill out our Return Form. Please make a note of the return ID number you get after submission.
STEP 2: Write the return ID number on the delivery note that came in the box with your order, or on the invoice that you received in e-mail.
STEP 3: Repack the item carefully, including all components. Make sure the eyewear is in its original case and include the delivery note or the invoice with your return ID number.
STEP 4: Ship the eyewear in its original packaging or other padded box and mail to the return address provided by our customer services team:
Medicontur Zrt., Krisztina Aszmann
Daróczi út 80.
Budapest, HUNGARY
H-1113
STEP 5: Once your package is received, we will process your refund in maximum 10 working days. You will be contacted via email if there are any issues.
STEP 6: After this period, your refund will be credited back to your original method of payment (Paypal or Stripe). Once your refund has been processed, it might take up to 10 business days for your bank to process the credit and apply it to your account.
How will I receive a refund?
Once your returned item is received, we will process your refund within a maximum of 10 working days. Your refund will be credited back to your original method of payment. Once your refund has been processed, it can take up to 10 business days for your bank to process the credit and apply it to your account.
Warranty conditions
Does my COLORON eyewear come with a warranty?
All our eyewear comes with a warranty. We believe in our products and their ability to give you an exceptional colour vision experience. We offer a 2-year warranty on all of our products from the date of purchase.
Any alterations of COLORON products (i.e. frame adjustments or Mix&Match clip-on base lenses exchange with prescription lenses) will void warranty coverage.
Check out the full COLORON Warranty Policy and learn how to file a claim.
How do I file a warranty claim?
You can read the full COLORON Warranty Policy before filing a claim.
If you need to file a warranty claim, please send us an email to returns@coloron.eu with the following information:
First and last name
Email address
Phone number
Product being returned
Reason for warranty claim
COLORON order number OR a copy of invoice/proof of purchase
Photo/video of warranty issue
Shipping address
Our Customer Service Team will be happy to assist you! We want to be sure you are enjoying your COLORON experience.
I got my base lenses changed in my Mix&Match clip-on glasses set to prescription lenses by my optician. Is the warranty still valid?
Unfortunately, any alterations of COLORON products (i.e. frame adjustments or Mix&Match clip-on base lenses exchange with prescription lenses) will void warranty coverage.
Have you ever wondered why colour matters?
The human brain receives 90% of its information about the world through vision, with colour perception playing a vital role. But colour is much more than just visual data – it shapes our experiences and interactions. We use colour to communicate, to connect and to navigate our daily lives. Colour is what makes the world truly beautiful.
Education and learning
Being able to interpret colour-coded information in textbooks, graphs, and diagrams is vital. Early awareness of deficiencies in colour vision is essential, as our research shows that younger individuals adapt faster to colour enhancement lenses. By enhancing their ability to distinguish between reddish and greenish shades and experience a broader range of colours, we support their choices in education and career planning, empowering them to live life more confidently.
Challenges at work
There are many professions that require accurate colour vision, even in ways we might not immediately recognise. From simple tasks like colouring an Excel cell or creating a diagram to more complex challenges like distinguishing colour-coded cables, lights, or surfaces, colour vision plays a crucial role.
More than 100 professions rely on good colour vision, including graphic designers, butchers, electricians, beauticians, hairdressers, warehouse workers, carpenters, agricultural workers, and many others. The good news is that colour enhancement eyewear can make these roles accessible for individuals with colour vision deficiencies.
Excluded professions
Laws and regulations regarding colour vision requirements vary by country. However, on average, individuals with colour blindness are restricted from professions such as pilots, ship and train operators, as well as roles in high-risk factories, hazardous operations, and armed forces that require the use of firearms.
Driving and navigation
Being able to see colours is not only a requirement for obtaining a driving licence; it also helps us interpret maps, tourist signs, traffic lights, road signs, and other warning signals.
Please note that all colour enhancement lenses are filter lenses, meaning they block a small portion of the colour spectrum. For optimal performance and safety, these lenses should only be used in proper daylight. Please carefully read the Instructions For Use.
Routine activities
Deficient colour perception can cause challenges in daily activities that people with normal colour vision might not even notice. Simple tasks like choosing your morning outfit, selecting ripe fruit, cooking meat to the right doneness, matching socks, or enjoying a football match are not the same experience for someone with colour blindness.
Nature and the world that surrounds us
An autumn walk through a forest in October with its array of hues, an April afternoon in a park surrounded by blossoming flowers, a stroll through the vibrant rows of a bazaar in a foreign city, or enjoying the orange glow of a seashore sunset – these are the moments our colour blind customers experience in a new way when they try enhancement lenses for the first time.
Quick facts about colour blindness
Red-green colour vision deficiency
The most common form of colour blindness is the red-green colour vision deficiency (anomalous trichromacy), when 2 out of the 3 cones, the red (protan type, including protanomaly and protanopia) or the green (deutan type, including deuteranomaly and deuteranopia) are sending the brain incorrect signals during colour perception. This error makes distinguishing reddish and greenish hues challenging, often leading to confusion when identifying colours like red, orange, brown, purple, and green in various daily situations.
We separate the rare conditions of partial colour blindness (trichromacy), where only 2 cones are functional and complete colour blindness (monochromacy), where only 1.
Other colour blindness conditions
Our technology focuses on the most common type, red–green colour blindness, where we can most effectively support colour vision and differentiation.
However, there are other types worth mentioning, such as tritanomaly and tritanopia, where the blue cone is shifted toward the other photoreceptors.
We are also aware of rare conditions, such as monochromacy, where only one type of cone functions; and achromatopsia, often referred to as total colour blindness, in which none of the cones work and vision is limited to shades of grey through rod cells.
Some forms of colour vision deficiency may also be acquired, for example as a result of diabetes, side effects of medication, or eye injury.
How is colour blindness diagnosed?
Official diagnosis must always be carried out by an ophthalmologist or optometrist. These specialists use manual tools such as the Ishihara test (colour bubble numbers) or the Farnsworth-Munsell test. Some professionals also use an Anomaloscope, a specialised instrument used to quantify and characterise colour blindness.
However, if you’re looking for a modern and reliable tool to check your colour vision in just 5 minutes — whether you have a colour vision deficiency or normal colour vision — try the COLORON online tester here.
What causes colour blindness?
Colour blindness is primarily inherited through genes and is present from birth. The genes responsible for colour vision are located on the X chromosome. Men have only one X chromosome, while women have two, which is why this condition is more common among men (1 in 12) than women (1 in 200).
In some cases, colour blindness can also be acquired due to medical conditions (e.g., diabetes) or long-term medication use.
As of today, there is no cure for this condition, but the ability of distinguishing between reddish and greenish shades can be significantly enhanced.
Can it be cured?
Currently, there is no cure for colour vision deficiency. However, colour enhancement lenses (filter lenses) can significantly improve the ability to distinguish between reddish and greenish shades.
Frequent use maximises the enhancement potential for individuals, although they must continue wearing the lenses to maintain the effect. Some users have reported that after a few months of usage, they perceive colours more vividly even without the enhancement eyewear. (This phenomenon is not yet clinically proven.)
How common is it?
It is quite common, as approximately 4% of the entire population is affected by red-green colour vision deficiency. This condition is more prevalent among men (8%) than women (0.5%).
Globally, there are an estimated 300 million colour blind individuals, which means there is likely a colour blind relative in every second family and a colour blind child in every second classroom.
How do they see the world?
People with colour vision deficiencies perceive colours differently from those with normal colour vision. Most of them struggle to distinguish between reddish and greenish hues: green may appear more yellowish, purple might look more like blue, pink could seem greyish, while brown and green, or yellow and orange are often confused.
If you have normal colour vision, you can use the Chromatic Vision Simulator app to experience how various colour vision conditions affect the perception of objects around you. (Download it to Android or iOS)
Are there people who see the world only in grey?
Unfortunately, yes. This is the most severe form of colour blindness, known as monochromacy. It is a rare type of colour vision deficiency, when a person sees the world only in shades of grey, much like a black-and-white photograph. Also referred to as total colour blindness, it affects approximately 1 in 100,000 people.