EASY Blue Light TEST for Light Sensitivity [MAXIMIZE Eye Protection 2019]

Updated:

There’s only one way to know which blue light filter will work for you: By doing a blue light test.

Unfortunately, blue blocker testing has been an expensive process. In time and money, because:

Blue light filter test requires you to:
– try one, two, three, or more filters,
– each filter for hours, days, (sometimes) a week…
Until you find the filter that works for you.

Not easy to do. Unless you live near a low vision agency. One with lots of blue light filters to test for light sensitivity.

But here is the kicker:
Our Blue Light Test kit can guide you through the entire blue light filter shopping process.

BONUS: A FREE Blue blocker test for light sensitivity with an app (more below).

 

This is what our blue light filter Tester looks like:

Bluelight filter test kit

It’s eyewear and 8 Filters with different blue blocking ranges.

Best part:
It also works if you wear prescription glasses. As over prescriptions!

Using it is simple:

1. Get the Blue Light Test kit:

– from GLARminY (€20, worldwide shipping included) – shipped out of EU (2-4 week delivery), or
– from Amazon.com (US$20) – shipped from USA

2. Do the Blue light sensitivity test – try the Filters one-by-one:

– if none of the 8 Filters works, that’s great news: Blue light is not causing your problems! You can look at other possible causes.
– but you are likely to find the Filter that really works for you. If so:

3. Order the most similar blue light filter: glasses, fit-overs, flip-ups, screen protectors. From this table.

That’s it!

User from the USA: I just received the tester. Within 20 minutes, it was clear that the “0”s are the best for pain blocking, but my visual acuity is degraded, as expected.

I’d gone to some great neurologists and optometrists in California and paid a lot of money to try to solve my light sensitivity problem, with no success… I get your test kit and I get immediate relief. I should get a refund from the doctors and send it to you!

 

Buy Blue Blocker Test kit from AmazonUS$20
(ships from USA)

Buy Blue Blocker Test kit via PayPal€20 via Pay-Pal
(worldwide shipping from EU included)

 

In case you want to know more, here is what follows:

– Research and experience on blue light testing
– Blue light sensitivity test – the old way
– Our Blue Light Filter Test kit
– Best way to test for light sensitivity
– How to shop for the best matching blue light filter
– Blue Light Test kit care & use instructions


It is the wild, wild west … of blue light!

Vendors often try to convince us that:

– Their blue light filter is the answer to your problem(s).
– Many use the bad blue light vs. good blue light argument.

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Either way is an oversimplification (not based in research nor experience).

Now, here is what you find out as soon as you read more than one report (or promotional text) on the effects of blue light:

There is absolutely no agreement on what specific frequency or frequencies of light to attenuate, nor how far to attenuate said frequencies.

Further, every manufacturer seems to have their own particular interpretation of “blue light”, and how they choose to “manage” it varies wildly.

This is a quote by an optician. On a forum for eyecare professionals!

You might think: That’s from 2014.
But it’s just as true today! And likely for years to come.

Bottom line:
You can know what blue light filter works for you only if you test for light sensitivity.

User experiences confirm it (see here, here, and here).

And so do top vision scientists: “We still know too little to make predictions” [Measuring and using light in the melanopsin age. (2014)].

NOTE: Blue light might not be your problem. Unlike most of us, some people actually need blue light for visual comfort!?

If you don’t find relief with any of the Blue Light Test Filters, you should look into other possible causes.

 

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Blue light sensitivity test (the old way)

The task of choosing the right blue light filter is overwhelming.

There are:

– many different blue blockers on the market,
– many different problems caused by blue light,
– more or less aggressive artificial lighting setups, and
– different ways people respond to light.

Bottom line:
If you buy one blue blocker and it works it’s a miracle.
(Without a light sensitivity test, of course).

TIP: Always check the vendor’s return policy before ordering a blue blocker.

 

Now, here is the good news:
Blue light sensitivity test works for any condition:

– visual discomfort
– computer eye strain
– dry eyes
– headaches
– eye strain from office lighting
– insomnia
– migraine
– benign essential blepharospasm (BEB)
– traumatic brain injury (TBI)
– photophobia/light sensitivity
– discomfort glare
– age-related macular degeneration (AMD)
– low visual acuity
– poor distance vision
– low contrast sensitivity
– etc..

Until recently, the two ways to test for light sensitivity were:

1. Buy a filter. See how it affects you. Keep or return.
2. Find a nearby ophthalmologist, optometrist, or a blindness/low vision agency. One that stocks and lends blue light filters for light sensitivity testing.

NOTE: Your first impression of a blue light filter may be misleading. Some conditions (insomnia, migraines, AMD …) need more testing time. Plan on trying each filter for a while.

 

Either blue blocker test option can help you find your perfect blue light filter. But they have important downsides:

– buying and returning blue light filters may be a long and stressful process,
– testing at an office/agency only works if you live close to one.

Our Blue Light Filter Test kit solves these drawbacks.

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The Blue Light Test kit

Our blue light filter test kit is eyewear (glasses or over-glasses) with a set of 8 blue light Filters.

Each Filter blocks a different range of blue light. From only a little to all blue light.

Bluelight filter test kit - wraparound fit

Also,
Below you can find links to 80+ blue blockers (glasses, over-glasses, screen protectors). All with known spectral transmission data.

User from the USA: An amazing selection of filters!

 

The cardstock frame blocks out most of the unwanted, unfiltered light from the sides.

With an easy adjustment to the temple length, the blue light filter Tester fits larger and also small heads. For example, this 6-year old:

Bluelight filter test kit - fits a 6 year-old

And, if you wear prescription glasses – No problem:

Bluelight filter test kit - over glasses

The Tester frame should fit over most prescription glasses. (The distance between the temples is 150mm = 5 2932 inches).

Bluelight filter test kit - over glasses

 

Buy Blue Blocker Test kit from AmazonUS$20
(ships from USA)

Buy Blue Blocker Test kit via PayPal€20 via Pay-Pal
(worldwide shipping from EU included)

 

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The 8 Blue Blocker Test Filters

We selected 5 Tester blue light Filters based on:

spectral sensitivity of our photoreceptors for sharp vision;
peaks at ~530nm (M-cones) and ~560nm (L-cones) (click to view spectrograms)

spectral sensitivity of the photoreceptors responsible for sleep regulation (ipRGCs);
high sensitivity 480nm +/-50nm

blue blocking properties of macular pigment;
maximum near 460nm
important because of the widespread deficiency

LED spectral power distribution – most screens use LED technology:
high peak in the blue region – near 450nm

fluorescent light spectral power distribution;
peaks of blue light near 405nm, 435nm, and 490nm

TIP: For more detailed info and references to scientific papers see this guide on choosing a blue light filter, and this article on indoor lighting and eye strain.

 

The remaining 3 Filters are like the 3 popular brands of blue blockers:

Gunnar – computer glasses

Axon Optics and TheraSpecs – light sensitivity, fluorescent light protection & migraine relief glasses (with the FL-41 tint).

This is how the blue light test Filters look like:

Bluelight filter test kit - 8 Filters

We mark them in the order from blocking more blue light (Number: 0) to blocking less (Number: 7).

User from the Czech Republic: I have been testing the filters you sent me and I must say I notice a difference. Especially with Filters 2 and 3. I still feel some discomfort, but it doesn’t develop into a migraine or stinging pain behind my eyes as it happens without the Tester. The world is also very nice in the cast of yellow. :)

I am surprised as this means the problem is definitely related to blue-light.

I will keep testing the different Filters and see how it goes. Filter 7, however, seems too weak for me so far.

 

Changing Filters is easy – through the opening at the top of the frame:

 

Here is Why we selected each of the Filters?
(to view spectrograms click below)

Filter 0: filters/blocks light up to 580nm; That’s all the wavelengths that suppress sleep hormone production.

Filter 1: blocks up to ~525nm (all blue light); should be enough to improve sleep – well above peak sensitivity for sleep hormone regulation (~480nm).

Filter 2: cuts off at 490nm; just above peak sensitivity of sleep regulation; and comfortably above peak absorption of macular pigment (~460nm) and high blue light emissions of digital screens and energy saving (LED, fluorescent) lamps (~450nm); high transmittance at peak sensitivity of sharp vision (~530, ~560nm).

Filter 3: cutoff at 460nm – at peak absorption of macular pigment; blocks 100% near the peak emission of LED lamps and digital screens (~450nm); allows plenty of light for the sharp vision photoreceptors (~530, ~560nm).

Filter 4: like TheraSpecs migraine relief glasses (indoor FL-41 tint).

Filter 5: like Gunnar computer glasses (amber tint).

Filter 6: like Axon Optics’ migraine relief glasses (indoors FL-41 tint).

Filter 7: cutoff at 400nm; 80+% transmission by 440nm and above; nearly clear – minimal color distortion – similar to blue blockers that claim no color distortion.

NOTE: The Filters are similar (not identical) to the filters available in the market. The match is as good as specified in the table below. Similar filters produce the same therapeutic effect.

 

Buy Blue Blocker Test kit from AmazonUS$20
(ships from USA)

Buy Blue Blocker Test kit via PayPal€20 via Pay-Pal
(worldwide shipping from EU included)

 

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Best way to use the blue light filter test kit

You can test your eyes with different Filters at random.

But, by following a method you are more likely to find your favorite Filter faster.

Here is what we recommend:
Start with a strong Filter — to figure out if blue light is causing your problem (it may not).

NOTE: any strong blue blocker has two side effects: color distortion and brightness reduction (your eyes get less light).

 

You may find color distortion and/or brightness reduction unacceptable. If so, try weaker blue light Filters. They reduce brightness and distort color less.

 

More specifically:

Start with Filter 1 (it’s orange and comes installed in a new Tester):
– It blocks all blue light.
– If your problem is due to blue light you should feel an improvement.

(Depending on your problem the improvement may or may not be immediate).


Insomnia. Filter 1 should improve sleep in most cases. Wear it for a few days for 2-3 hours before bedtime.

If you don’t notice any improvement with Filter 1 you should try Filter 0. It blocks all the wavelengths that affect sleep hormone production.

Note that fixing sleeping disorders may be a slow process. Be patient.

Also, blue light is not the only cause of insomnia. Make sure you also consider other possible causes.


If you feel an improvement with Filter 1 you can either:

– find/buy a similar product (see table), or

– if you find the orange tint disturbing, try Filter 2, then 3, 4 …

Until you find the blue light Filter that works for you. Without any negative side effects (possible nausea, headache, loss of acuity, etc…)

That’s your favorite filter. Now, get the product that blocks blue light in the same way. (See below).

Here is a real example:

User from the UK: To date, I have conducted some small tests with lens 1 and 2. I find both helpful but perhaps too strong for my needs, especially when combined with the IRIS software on my computer. So, I will continue with my experimentation and work through the lenses.

Interestingly, I suspect I will need more than one pair of glasses with different blue filtering lenses for different activities.

[A few days later]: I am now testing filter number 3 and getting on well with this filter. I will continue with the experimentation and let you know which filters work best for me in different scenarios.

 

Buy Blue Blocker Test kit from AmazonUS$20
(ships from USA)

Buy Blue Blocker Test kit via PayPal€20 via Pay-Pal
(worldwide shipping from EU included)

 

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How to order a blue blocker that’s like your favorite Tester Filter

We’ve done a lot of work to make this easy for you:

First, you will click (below) on the number on the blue light test Filter that works best for you.

You’ll go to the Group of all:
– blue blocking glasses,
– over-glasses, and
– screen protectors
that are like your favorite Filter.

Once there, choose among the filters in that Group.

Base your final decision on your other, non-blue-blocking-related, personal preferences:
– frame style
– different glasses lens coatings
– matte or glossy screen protector surface
– digital device type and screen size
– color distortion- price
– etc.
Find this info by clicking on the links in the Where to buy column.

TIP: If you need non-prescription blue light filter glasses see this guide/table.

 

The tables make it easy to compare the products. You’ll find blue blocking rates at six different wavelengths for each filter.

Intense red background means Higher blue blocking rate:

100 – 75 % 70 – 50 % 45 – 25 % 20 – 0 %

Disclosure: some of the links below are commission links. If you use them to go to a vendor’s site and purchase a product, we get a small commission at no extra cost to you. Thanks!

Here we go:

Click on your favorite Filter number (or scroll down):

# 0 # 1 # 2

# 3 # 4 # 5

# 6 # 7


Group #0 – like Filter #0
Migraine relief & Sleep filters *

* Most sell as blue light filters for Migraine relief or Insomnia.

Now:

They’ll work for you like the blue light test Filter #0. Even if your problem is NOT migraine or insomnia.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
SomniLight Migrane Relief Glasses 100 100 100 100 100 100 SomniLight
DIY screen filter (LEE Filters 106 Primary Red) DIY Screen Protector 100 100 100 100 100 100 Amazon
Filter 0 – cutoff: 580nm Blue light Test kit 100 100 100 100 100 100 GLARminY, Amazon
Carbonshades ** Glasses 100 100 100 100 100 100 Carbonshade
NoIR #570 39% Dark Red/Orange Glasses, Clip-ons, Flip-ups, Fit-Overs 100 100 100 100 100 90 NoIR, Amazon
** Spectral transmission data from vendor’s website

 

Group #1 – like Filter #1
Sleep & Computer gaming filters*

* Such filters tend to sell as Sleep or Computer gaming filters.

Now:

They’ll work for you like Filter #1. Even if your problem is NOT insomnia or computer eye strain.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
Cocoons SideKick orange lens ** Over-glasses 100 100 100 100 100 n/a Cocoons Fit-overs and Clip-on flip-ups
NoIR #553 52% Red/Orange Glasses, Clip-ons, Flip-ups, Fit-Overs 100 100 100 100 100 70 NoIR, Amazon
Filter 1 – cutoff: 525nm Blue light Test kit 100 100 100 100 100 65 GLARminY, Amazon
3M 2846 Red-Orange safety spectacles Glasses 100 100 100 100 100 55 Amazon, RapidOnline
LowBlueLights – glasses Glasses, Fit-overs 100 100 100 100 100 20 LowBlueLights glasses, fitovers
NoIR #60 UVShield 49% Orange lens Glasses, Clip-ons, Flip-ups, Fit-Overs 100 100 100 100 100 20 NoIR, Amazon
UVEX SCT Orange Computer glasses Glasses, Fit-overs 100 100 100 100 100 15 Amazon
NoIR 505 – GLARESHIELD 56% Orange Glasses, Clip-ons, Flip-ups, Fit-Overs 100 100 100 100 95 60 NoIR, Amazon
Spectra 479 Amber Glasses for Sleep Glasses 100 100 100 100 95 40 Spectra479, Amazon
Melatonin Shades Evening Eyewear Glasses 100 100 100 100 95 30 Melatonin Shades, Amazon
BlueBlockGlasses Glasses 100 100 100 100 95 25 BlueBlockGlasses
f.lux at 1200K * bluelight app 100 100 100 100 95 15 f.lux
LowBlueLights – screen filter Screen protector 100 100 100 100 70 15 LowBlueLights
DIY screen filter (Roscolux #22 Deep Amber) DIY Screen protector 95 100 100 100 100 85 Amazon
NoIR 533 – GlareShield 35% Amber/Orange Glasses, Clip-ons, Flip-ups, Fit-Overs 100 90 95 95 90 70 NoIR, Amazon
Mojo BluBlock Sun Brown 60 Glasses (also Prescription) 90 90 95 95 90 60 Reading Glasses ETC
NoIR 68 UVShield 52% Light Orange Glasses, Clip-ons, Flip-ups, Fit-Overs 100 90 90 95 90 10 NoIR, Amazon
* Blue blocking rate equivalents calculated.

** Spectral transmission data from vendor’s website.

 

Group #2 – like Filter #2
Sleep & Computer Gaming filters*

* Such filters sell as eye strain screen filters

Now:

They’ll work for you like Filter #2. Even if your problem is NOT computer eye strain.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
Filter 2 – cutoff: 490nm Blue light Test kit 100 100 100 100 25 15 GLARminY, Amazon
Mojo BluBlock Therapy Orange Rx Glasses 100 100 100 95 85 30 Reading Glasses ETC
Spektrum ProSPEK-99 Computer glasses Glasses, Clip-ons, Flip-ups 100 100 100 95 75 10 Spektrum, Amazon
DIY screen filter (LEE Filters 767 Oklahoma Yellow) DIY Screen protector 100 100 100 90 50 15 Amazon
NoIR 465 – GlareShield 70% Yellow Glasses, Clip-ons, Flip-ups, Fit-Overs 100 90 95 85 30 10 NoIR, Amazon
Mojo BluBlock Day Tan Melanin Glasses (also Prescription) 95 90 85 80 65 30 Reading Glasses ETC

 

Group #3 – like Filter #3
Eye-strain and Gaming filters*

* Filters with these transmission properties sell as computer eye strain or Gaming filters.

Now:

They’ll work for you like Filter #3. Even if your problem is NOT computer eye strain.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
Cocoons non-polarized yelow/lemon lens ** Fit-overs, Clip-ons, Flip-ups 100 100 100 n/a n/a n/a Cocoons fit-overs, Clip-on Flip-ups
DIY screen protector (Roscolux #312 Canary) DIY Screen Filter 100 100 100 95 35 15 Amazon
Filter 3 – cutoff: 460nm Blue light Test kit 100 100 100 80 15 10 GLARminY, Amazon
T’aime 97% Computer Glasses * Glasses 100 100 100 75 20 10 T’aime on Amazon
DIY screen protector (Roscolux 12 Straw) DIY Screen Filter 100 100 100 70 25 15 Amazon
NoIR 50 – UVShield 54% Yellow Glasses, Clip-ons, Flip-ups, Fit-Overs 100 100 100 70 10 10 NoIR, Amazon
f.lux at 1900K * bluelight app 100 100 95 90 80 15 f.lux
Mojo BluBlock Night Yellow Glasses (also Prescription) 100 100 95 70 40 15 Reading Glasses ETC
f.lux at 2300K * bluelight app 100 95 95 80 70 15 f.lux
NoIR 58 UVShield 58% Yellow Glasses, Clip-ons, Flip-ups, Fit-Overs 100 95 95 30 10 10 NoIR
Blue Shark Optics – Blue AspisTM Lens Glasses 100 95 90 30 5 5 Blue Shark Optics
f.lux at 2700K * bluelight app 100 90 85 70 60 15 f.lux
Mojo BluBlock Day Amber Melanin Glasses (also Prescription) 95 90 80 60 40 25 Reading Glasses ETC
UVEX Amber blue blocker lens Glasses Glasses, Fit-overs 100 85 75 20 10 10 Amazon
f.lux at 3400K * bluelight app 100 80 75 55 45 15 f.lux
* Blue blocking rate equivalents calculated

** Spectral transmission data from vendor’s website

 

Group #4 – like Filter #4
Fluorescent, Light sensitivity and Migraine relief filter *

* This filter is like the TheraSpecs glasses that sell as Fluorescent, Light sensitivity and Migraine glasses.

Now:

The filters below will work for you like Filter #4. Even if your problem is NOT Light sensitivity, Migraines or Fluorescent lights.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
Mojo BluBlock Sun Brown 40 Rx Glasses 80 75 80 80 70 40 Reading Glasses ETC
TheraSpecs FL-41 indoor Migraine relief & anti-fluorescent Glasses Migraine relief/anti-fluorescent Rx Glasses 55 60 80 80 80 45 TheraSpecs, Amazon
Filter 4 (TheraSpecs-like) Blue light Test kit 65 70 65 75 75 40 GLARminY, Amazon
DIY screen protector (LEE Filters #107 Light Rose) DIY Screen filter 50 50 55 70 75 55 Amazon

 

Group #5 – like Filter #5
(Gunnars – like) Gaming & eye strain filters *

* Gunnars sell as computer and gaming glasses.

Now:

The filters below will work for you like Filter #5. Even if your problem is NOT computer eye strain and you don’t play video games.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
DIY screen protector (LEE Filters #765 LEE Yellow) DIY Screen filter 60 65 70 65 25 15 Amazon
Filter 5 (GUNNAR-like) Blue light Test kit 75 60 65 55 35 20 GLARminY, Amazon
Mojo BluBlock Day Brown 20 Glasses (also Prescription) 70 60 65 65 50 25 Reading Glasses ETC
Reticare – screen filter Screen protector 60 65 65 50 30 20 RetiCare, Amazon
f.lux at 4100K * bluelight app 95 70 60 50 35 15 f.lux
Gunnar Amber BLPF 65 Computer Gaming glasses Glasses (also Prescription) 100 70 55 25 15 5 Gunnar, Amazon
Spektrum ProSPEK-50 Computer glasses Glasses, Clip-ons, Flip-ups 100 80 45 20 10 5 Spektrum, Amazon
* Blue blocking rate equivalents calculated

 

Group #6 – like Filter #6
FL-41 Axon-like filter for Migraine

Axon Optics glasses are well-known Light sensitivity and Migraine glasses.

Now:

The filters below will work for you like Filter #6. Even if your problem is NOT migraine headaches and light sensitivity.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
Axon FL-41 indoor Migraine relief & anti-fluorescent Glasses Migraine relief/anti-fluorescent Rx Glasses & Contact Lenses 100 50 40 45 50 40 Axon, Amazon
Filter 6 (AXON-like) Blue light Test kit 40 35 40 45 45 30 GLARminY, Amazon
DIY screen protector (LEE Filters #153 Pale Salmon) DIY Screen Filter 35 30 40 50 55 45 Amazon

 

Group #7 – like Filter #7
Computer eye strain filters*

* Filters in this group sell as computer eye strain filters.

Now:

They’ll work for you like Filter #7. Even if your problem is NOT computer eye strain.

Blue light filter
(click to open spectrogram)
Type % blocked at wavelengths (nm) Where to buy
400 425 450 480 520 570
EYES PC blue light blocking glasses Glasses (0, +1, +2 power), Clip-Ons 100 60 35 25 15 10 Amazon
f.lux at 5000K * bluelight app 95 40 35 25 20 15 f.lux
BluTech blue blocker lenses Glasses 100 50 25 20 20 15
eyeglass.com
J+S Vision Computer & Gaming Glasses Glasses 100 35 25 15 10 5 Amazon
EYES PC Screen Protector Screen Filter 100 30 25 25 25 20 Amazon
JINS Screen PC glasses Glasses 100 100 20 10 5 5 JINS, Amazon
Filter 7 – Cutoff: 400nm Blue light Test kit 100 40 20 20 15 15 GLARminY, Amazon
Gamma Ray eye strain Computer glasses (yellow/amber tint) Glasses 95 50 20 15 5 0 Amazon
Nikon – SeeCoat Blue Premium Glasses 95 35 15 10 n/a n/a Your local optician
RetinaShield Screen protector 95 25 15 10 10 10 Tech Armor, Amazon
OcuShield Screen protector 30 15 15 15 15 20 OcuShield
EyeFatigue Computer Glasses Glasses 20 15 15 10 5 10 EyeFatigue
PFO Global – iBlu Coat Glasses 95 15 10 10 10 5 Your local optician
Zeiss – DuraVision BlueProtect Glasses 35 15 10 5 0 0 Your local optician
Zeiss – DuraVision DriveSafe Glasses 35 15 10 5 0 0 Your local optician
RetinaGuard Screen protector 95 30 10 10 n/a n/a RetinaGuard, Amazon
Essilor – Crizal Prevencia Glasses 95 25 10 5 0 0 Your local optician
Zenni BLOKZ and UV+ Blue blockers Glasses (also prescription) 100 50 5 5 5 5 Zenni BLOKZ and Zenni UV+
Essilor – Smart Blue Filter Glasses 15 35 5 5 n/a n/a Your local optician
* Blue blocking rate equivalents calculated

** Spectral transmission data from vendor’s website

 

Buy Blue Blocker Test kit from AmazonUS$20
(ships from USA)

Buy Blue Blocker Test kit via PayPal€20 via Pay-Pal
(worldwide shipping from EU included)

 

↑ Table of Contents ↑


Blue Blocker Test kit care & use instructions

Size. Out-of-the-“box” the blue light filter Tester:

  • loosely fits a child’s heads (e.g. a 6-year-old)
  • tightly fits a larger, adult head, (as wraparounds) — minimizes unfiltered light from the sides.

To increase temples’ length cut carefully as shown below. Use the marks to guide you.

Bluelight filter test kit - adjusting temple length

 

Filter cleaning:
Take a Filter carefully out of the frame to avoid damages to the frame.

Don’t use anything rough or abrasive to clean the filters. They are made of transparent polyester coated with a tint. The coating gives the Filter its unique spectral properties. It is important not to damage it mechanically or chemically.

Don’t use solvents such as acetone or ethanol!

Use a water-based cleaning solution to clean a Filter (for example regular liquid soap).

Rinse under clean running water.

Dry Filters with a gentle:
– lint-free cleaning cloth (microfiber cloth), or
– facial tissue (Kleenex).
No rubbing!

 

Perspiring & liquids. Sweat or other liquids applied to the cardstock frame will deteriorate it. Refrain from using GLARminŸ blue light filter Tester when sweating and keep it away from liquids.

Buy Blue Blocker Test kit from AmazonUS$20
(ships from USA)

Buy Blue Blocker Test kit via PayPal€20 via Pay-Pal
(worldwide shipping from EU included)

 

↑ Table of Contents ↑


Bonus: A FREE blue light test

Use f.lux -the FREE blue light filter app- to do a rough blue light sensitivity test.

Test for light sensitivity at different CCT settings (from 1200K to 6500K). Until you find what feels the most comfortable.

Then, look for f.lux at xx00K in the tables above:
– to get an approximate idea of your blue light sensitivity,
– to know what blue light blocking glasses, over-glasses, or screen filters might work for you.


 

Ps: If you find the Blue light test useful, please consider LIKING, REBLOGGING, and/or SHARING it below.

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2 thoughts on “EASY Blue Light TEST for Light Sensitivity [MAXIMIZE Eye Protection 2019]

  1. Going to eye glass retailer, They can match the filter I felt worked best. Yea! Thanks so much for your help. He wants me to bring your info to our visit.
    Thelma, Texas

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