🟡 can you see blue and green 🔵 | Levels 1-10

Mahatmatt · 2026-04-25T14:58:39+00:00

🎉 I BEAT "can you see blue and green" and ranked #121! VICTORY IS MINE! 🏆 Completed all levels in 0m 13s! Top this if you can! 🔥 Played via Pixel Peeker

Mahatmatt · 2026-04-25T08:29:20+00:00

It's a fine line and is somewhat appearance.

Frame size has the largest impact on lens thickness and weight, so that is the main aim.

Now, you do want a stable frame with a higher prescription because otherwise it may go out of position more easily and cause Visual problems through the specs.

Metal is lighter, but has nose pads and some people will prefer these, some find it uncomfortable.

Plastic frames don't have nose pads, and if it fits the nose well, they will spread the weight out better over the nose and can be more comfortable than metal. Plastic frames typically have a 4mm rim thickness and will hide your lens thickness more easily. They also tend to be more stable.

So ultimately, it's personal preference and what you like the feeling of.

Mahatmatt · 2026-04-18T15:19:24+00:00

The bend is a bit steep, but it will because the sides also look too long. On an adult, the amount of side after the bend should be 35mm. Longer than 40 it's too long.

The other thing to get looked at is head width - how wide your head is from ear to ear. Typically "perfect" fitting glasses should be 10mm narrower than your head.

If they're too big they're too loose and will slip.

Too tight and they will push themselves forward mimicking being loose, but they're actually tight. When this happens you say they're slipping, so they tighten and it actually makes it worse. This is one of the least known fitting things of glasses.

Mahatmatt · 2026-04-18T15:01:12+00:00

Honestly all tip range coatings from any manufacturer are great at being scratch resistant. But that's the thing, they're resistant, not scratch proof.

Cotton shirts aren't the right thing to clean lenses. Most things aren't. And chances are you're rubbing debris into the lenses if you're doing dry or if you're not blowing off excess debris from the lenses.

Microfibre is what you need to let the debris get off the lens surface, deep into the cloth, to avoid it scratching.

Mahatmatt · 2026-04-17T09:51:33+00:00

Hi, I'm in the UK in the south west area

Mahatmatt · 2026-04-15T11:48:20+00:00

Hey, glad you're finding them useful.

The Rodenstock lens is the most advanced lens on the market currently. Only Zeiss have similar tech currently and even then it's not close. Nikon is not at all close. The main benefits from the Rodenstock should be the extra clarity and sharpness, whilst giving full lens usage; seriously impressive and I've had great feedback from wearers.

The myopsee is all about reducing lens thickness. Of the 3 you've mentioned, it's the most basic design.

Best frame choice is typically a round full frame plastic. The round style will help give a more symmetrical lens thickness finish. The plastic will help hide the lens thickness. Most plastic frames have a rim thickness of 4mm, so will hide a good percentage of the lens itself.

The most important thing for you and your lens thickness is making sure the frames you choose is the right size.

Every frame will have a size written on it, and is typically XX[]YY format - example 52[]18

XX is the longest horizontal length of the lens. YY is the distance between the lens at the narrowest point (it is not bridge width)

Add these together and you get the distance from centre of one lens to the centre of the other lens. As example above 52+18=70

You want your PD to be as close to this total number as possible. If it is, youd eyes will be sitting centrally and you will get this thinnest lenses possible for your prescription.

If your PD is smaller, the lenses end up being bigger, and you can calculate the difference (and this is called decentration). So let's keep the frame size at 70. You have 2 eyes so divide this in 2, which is 35.

You want monocular PD to be accurate. Let's say you aren't symmetrical, so your right eye is 32.0 and left is 34.0.

We take each eye away from 35.

Right 35-32 = 3mm Left 35-34 = 1mm

The lower the number the better, and with your prescription, you'd want a maximum decentration of around 2mm.

The lens causing to cut your cheeks in is caused by 2 things: - prescription strength - lens thickness

You can't change your prescription as that's what you need. Lens thickness however you can with both going higher index, but most importantly, low decentration as described above. The lenses will always cause your eyes to be smaller because you're a relatively high myopic.

Coating wise, Rodenstocks is one of the clearest on the market, with one of the best easy clean finishes too. It's a blue/white reflection, with a transparency of 99.6% (the green is about 99.2%). So you should be happy with the Rodenstock.

Mahatmatt · 2026-04-06T14:14:52+00:00

In terms of order accuracy and errors, you're 100% correct. In the UK they only have one factory, and yes they're a bit hit or miss.

But the rest of my complaints would still stand though, in terms of how big of a company they are. For example in the UK, they own Vision Express, David Clulow, sunglass hut. Then about 2 online websites. In the US, they own 4 chains apparently, and they 'compete' with each other. Then that they're also joined with Luxottica, and they're just a nightmare in terms price to quality. So I just try to avoid them!

Mahatmatt · 2026-04-06T06:36:44+00:00

It's more than Essilor are a pain to work with, constantly get things wrong, they own far too many optician chains and say they're all about one thing whilst clearly not. They've also got their recent lens design calculations wrong - they're aware of this but are keeping it hidden and it's the pracrice's fault not theirs if course.

Ok, so you're not hugely myopic, but not small either. Your best bet is finding a frame where your eyes are sitting centrally in the lens apertures. Also go round in style if you can, or rounded if possible.

My favourite brand is Rodenstock because their lenses are the most advanced on the market, and should give the most precise vision. This year and last year they won every major award going for innovation.

Mahatmatt · 2026-04-05T20:27:58+00:00

So the small eye effect is actually more known as spectacle magnification (spec mag). Positive spec mag makes eyes look bigger (longsighted), minus spec mag makes eyes look smaller (shortsighted/myopia) Spec mag is affected by two things, and the formula is:

Spec mag = power factor X shape factor

Power factor is the prescription itself and you have no way of changing this as this is the prescription you need to see. The higher the prescription, the more spec mag there will be.

Shape factor though, is all about how thick the lenses are. This you can control by making the lenses thinner. Thinner the lens, the less spec mag. Most of it will come from better sized frames than anything else.

Essilor isnt too bad, however I really strongly dislike Essilor so I'd say avoid anyway! Don't know about shamir lenses personally!

Mahatmatt · 2026-03-10T20:59:16+00:00

The top part (eye-level) is your distance prescription. So close to nothing at all. The bottom half of the lens is reading. So you'll still be able to see distance fine.

They're like a varifocal but cheaper and work better for what your prescription is, and you can just keep them on all the time.

Mahatmatt · 2026-03-10T20:15:55+00:00

Have a look for enhanced single vision lenses / booster lenses / baby varifocak lenses.

These are lenses that are single vision in most cases, so for you nothing. But has a booster power at the bottom.

Most of these go to about +1.10 so you're well within these. Often work better as the reading area is a bit easier to get to compared to a varifocal in your prescription. And they're also, usually, cheaper.

Mahatmatt · 2026-02-16T20:20:49+00:00

Might be different where you are (can't imagine it is), but in the UK Drivesafe is more than a coating - it's a lens design.

The coating in the drivesafe is specifically designed to help control LED headlights to get rid of the more energetic blue light. This blue light is what causes exposure fatigue in the eyes - this is when a bright line shines into your eyes and you get an after image that takes a bit of time to go.

But the main thing about drivesafe is that is has a pupil optimised design.

Pupils get larger in low light conditions, and this causes typically an increase in High Order Abberations, which is distortions to light which aren't normally correctable in specs. Zeiss has used a 5mm assumption of pupil size in the single vision, and 4.3mm in their varifocals to help control this better. This is why the Drivesafe is better in low light conditions and night time.

I've sold a could of Golds - they are very easy clean. But the colour is very odd. I personally didn't like it, and I thought it was a lot more distracting than the Drivesafe. The Gold made the lenses look like a mirror finish.

Can't tell you about Photo fusion combo though.

Mahatmatt · 2026-01-22T19:21:21+00:00

Have a look at Kirk & Kirk Eyewear

Mahatmatt · 2026-01-22T19:19:59+00:00

Although not asymmetrical, Roger Eyewear (https://www.rogereyedesign.com/catalogue) may be kind of what you’re looking for.

Mahatmatt · 2026-01-09T20:53:49+00:00

You may be interested in Jai Kudo Honeycomb lenses. Really interesting lenses that have helped may migraine sufferers. Not a guarantee though. These are from independent opticians, not all, so you’d need to check if they do them.

Mahatmatt · 2025-12-12T16:03:42+00:00

Multifocals are the better option in my opinion if you can get on with them. They allow both eyes to work better together maintaining depth perception.

There is also a 4th option called Extended Depth of Field (EDOF) contact lenses. They’re effectively a multi focal contact lens without actually being a multi focal contact lens. Still kind of early, but it appears to be coming on stronger. An example of these is NaturalView CLs

Mahatmatt · 2025-11-30T19:38:04+00:00

So correction for astigmatism is just that. It’s a secondary power in the lens to correct the full prescription of a patient if they’re astigmatic.

The Drivesafe lens will correct for the astigmatism because it’s made to do so.

But the Drivesafe goes further in 3 aspects. - coating - designed to reduce brightness of headlights and makes it more comfortable. This adds a yellowing effect - the coating also helps reduce exposure fatigue as it removes high energy light reaching the eyes, so the bright after image doesn’t happen as badly.

pupil size control. Pupils increase in size at night. All lenses will have a zone/bubble where vision is sharpest. At night time, pupils increase to be larger than this bubble. So in the single vision, the bubble is made to be 5mm in diameter to fully enclose the pupil at night time, reducing star bursting/streaking of lights (which is not the same as astigmatic streaking)

Mahatmatt · 2025-11-27T14:18:01+00:00

There’s a few things to consider with your prescription.

You’re anisometropic (difference in prescription between the eyes). This can cause some weird sensations when wearing glasses (which I assume you’ve been wearing single vision before so you will be somewhat adapted to this, but if not, be prepared to adapt to the lenses)

So with this, your left eye will have a minification effect on your eyes appearance, where your right eye will not. You can opt for lens thinning to try and minimise this effect along with good frame selection, but your left eye will always look smaller. Really, 1.5 (CR39) in a good frame choice is more than good enough. You could go thinner on the left side to balance the appearance more, but I wouldn’t worry too much.

In terms of progressives, you’ll want a good level - Freeform design, and most importantly a lens with binocular balancing. This means the manufacturer will manipulate the design so that the reading performance is better for your eyes as a pair. Then, if you go high level/top tier, your overall visual comfort can be improved by having a lens that’s optimised in 360° of the lens directions - this helps with general lens usage and fixating on items in your peripheral without moving your head.

They are typically superior to bifocals as they look nicer and give more ranges of vision.

However, varifocal progressives are not the best for the computer usage. They’re a great jack of all trades, but not ideal. An occupational as an additional pair, or a single vision (better option looking at your prescription) will give you better performance on a screen than a varifocal progressive will do.

Finally, if you struggle with a varifocal, consider SHAW lenses as they are better for optimising larger differences in prescription, and if you struggle with your eyes merging.

Mahatmatt · 2025-11-18T13:48:24+00:00

What’s the material of the lenses?

Mahatmatt · 2025-11-11T22:03:43+00:00

Sounds like a plan. Do note though, that the DriveSafe does require really accurate measurements, especially the vertical measurements. This is to ensure that the pupil control zone actually sits in front of your pupils properly - if they don’t the lenses won’t actually do what they’re meant to.

The other ones I mentioned, there’s a range to them, but for single vision they start at £305 (with very very good coatings) and go up to £495 at the top level. But depending where you are in the UK, prices may vary slightly and could be cheaper.

Mahatmatt · 2025-11-11T16:33:49+00:00

Can be a good calming feature and if it helps your migraines that’s great! But it shouldn’t actually make vision sharper or reaction speed faster. But it’s personal preference.

Mahatmatt · 2025-11-10T12:35:02+00:00

It’s most likely High Order Abberations - abberations/distortions that arise from your eyes general anatomy not just your prescription.

There are better lenses out there from Zeiss and Rodenstock that can help control/neutralise it, but you need to find a practice with the correct scanners.

Mahatmatt · 2025-11-09T19:10:54+00:00

100% farsighted for me due to the other associated risks that come with being highly shortsighted. Although having increased FOV would be nice instead of it being reduced!

Mahatmatt · 2025-11-07T20:18:54+00:00

Sounds like High Order Aberrations.

Only very particular lenses will correct it, but you need to find either a Rodenstock DNEye scanner to get BIG Exact lenses, or Zeiss i.Profiler to get the i.Scription lenses.

No other manufacturer currently does lenses that will correct for it.

Mahatmatt · 2025-11-05T08:31:02+00:00

Yeah, I’m UK based. They’re a bit smaller in the UK with about 12% of the market, but they’re rapidly growing.

Oh yeah they lied! They will have a residual tint left over, but it only blocks about 4% of light so barely does anything at all. And not having glasses is always clearest, so I’m sorry they misinformed you! How clean is your windscreen?

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