High Index Lenses 1.67 vs 1.74

What is the difference between a 1.74 high index lens and a 1.67 high index lens? That's what's discussed in this video. If you have any more questions or are interested in buying a pair of glasses with high index lenses, check out our website:
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[@joshizposh1995]

Great video just what i was looking for

[@RXSafety]

Glad you liked it

[@d7om1bigdeal]

That's so helpful, many thanks.

[@RXSafety]

Hello Abdurrahman, we are glad it was helpful!

[@aminfazeliniaki]

that was simple and informative. Thanks a lot

[@RXSafety]

You're welcome!

[@RahulRoy-vw5qk]

Informative video.. thanks.

[@RickACG]

Very interesting, thanks!

[@RXSafety]

Glad you liked it!

[@joemores6196]

THANK YOU

[@martynamartyna899]

Can you say sth about Seiko a zone? Is it the best option for people with high prescriptions?

[@RishiSharraf]

Best video out there

[@RXSafety]

Thanks!

[@PsychoMantisss]

Now if I have say a prism lens on top of a -5.25/-4.50 glasses prescription, would the 1.74 be a better option to help take some of the weight off of them?

[@Nafidzi]

For -6 both sides, which one is better?

[@kathyguerrero9290]

Great video

[@RXSafety]

Thanks!

[@raisariseup7647]

Hello. I'm -4.50, I have normally used 1.60 lenses but now I wanted a large and metallic frame (thin) and I was thinking of choosing the 1.74 index so that my lenses are not so noticeable in this frame. But, the abbe value of the 1.74 lenses is much lower (32) than the abbe value of the 1.60 lenses (41), so I fear having worse visual quality and chromatic aberrations with high index lenses. What do you recommend me? Do you think the difference between these two abbe values will be very noticeable in the vision? Thanks for your video!

[@chocoaudacity8905]

I am a +1.75 & +3.25. which one would you suggest, I was told 1.67 is more aspheric but... Let me know

[@RXSafety]

I would go with the 1.67 its not a really bad prescription

[@anti-ideologiespc8995]

Does this have anything to do with Spherical and Aspherical lenses? or it's something completely different?

[@RXSafety]

It doesn't matter any lens will be thinnger with high index

[@Smurdaz]

One would think in 2021 Lens would be so thin no matter what prescription one may have SMH

[@Threat1]

Every mans wish

[@morenabonita7265]

That’s a great point!

[@onehonei2]

I thought the same thing because technology is so advance today!

[@SS-kg8qw]

Why would the companies need to bring them in now even if it exists? They could just rip off people with the existing old technology

[@shawnmcfly6748]

Try 2022 😪

[@chs665]

Thanks

[@tipsanhdep]

Can you show me how to check index of lens

[@techburn349]

How to check the index of my lens?

[@joferyere8267]

i am so confused with that minus, is that diopter?

[@kabirulkhalid1874]

Elegant content Love from Bangladesh

[@JenniferMassey71477]

I have the 1.67 lenses. My prescription is -10.25 in my left eye and 10.75 in my right. I also have no line bifocals and Transitions lenses. The 1.67 are worth every penny of my high rx fee.

[@JenniferMassey71477]

@yoy nono I haven’t actually measured them, but in a plastic frame the lenses as they are tailored for my prescription stick out maybe a quarter inch or so in spots. I’m just delighted that I don’t look like the professor from Futurama.

[@ChangeUrAtOnYT.comSlashHandle]

@yoy nono Can I ask what store? I'm currently about to buy a pair at eyedealglasses and they are about 40 bucks cheaper than at walmart

[@Tyler-Wiley]

If possible, go for 1.74 because it will make the lenses even thinner.

[@kienkai]

I also have -10,25 in my left eye, right eye -9.50 just got new lenses and frames with 1.74 hoping it's good 😭

[@user-ue9sz5rj9w]

@@kienkai❓

[@carlopecoraro3117]

Hi, my prescription is the following (myopic and astigmatic): Right eye: Sphere Cyl Axis -3.5 -2 5 Left eye: -4.25 -2.25 10 Would it be better a 1.67 or a 1.74 index lens? Thank you very much for your help

[@taipogriz836]

1.67 or 1.61, really 1.61 if it’s offered, depending on what frames you want you could possibly get by with 1.57

[@RXSafety]

Hi Carlo Pecoraro, thank you for watching. :) That will depend on what kind of frame you have. We usually recommend 1.74. Please get in touch with your optician to be sure. Let us know if you have any additional questions.

[@fotisven4764]

Hello:) I am a +0,5 and +4,75(-1,25 CYL 180 AXE) would you go for 1.74? Thanks in advance!

[@RXSafety]

Depending on the type of frame they are going into, you may benefit from the 1.74

[@dasoultube]

I was searching and its recommended for +-9.0 for some reasson

[@natalyarciniegaspalacio7621]

It's important to consider weight. My prescription is -4.75, plus some astigmatism and I get 1.74 lenses just for my glasses to be lighter. For me it has been totally worth it, but maybe others don't notice much of a difference🤷‍♀️

[@RXSafety]

Hi Nataly Arciniegas Palacio, thank you for watching. :) Thank you for your input, indeed it is something to be considered as well. Please let us know if you have any questions.

[@ghoul3227]

I had have the same observation

[@ajurissac6777]

How much it cost?

[@user-ue9sz5rj9w]

@@ajurissac6777 400-450 dollars

[@akitaxxx8248]

my eye prescription is -9 i was recommended for 167 is that okay? i haven't worn prescription glasses for 8 yrs i'm afraid i would look like awful. since i work in a hotel i cannot wear thick glasses. since i have to rest my eyes i need glasses for awhile.

[@user-ue9sz5rj9w]

1.74 is much better than your prescription thickness, but 1.67 is acceptable, but it is thick

[@eligoptics]

There is 1.74 Transitions and Photochromic lenses, however, no Polarized and no XtrActive yet.

[@tahanazir9607]

I have -7 on the right and -4 on the left What lens would you recommene 1.67 or 1.74?

[@user-ue9sz5rj9w]

1.67 is good and excellent, but if you want it to be very thin, 1.74 is better

[@Simon-rb6kk]

Hey, i have -4.25 and -4.5, and im self conscious about the edges of the glasses making my face look smaller. Will there be a difference between 1.67 and 1.74 high index lens? Thank you!

[@bombchu9308]

1.67 is enough for your prescription

[@gmela2402]

@@bombchu9308what about for -5.75 and -6.00

[@user-ue9sz5rj9w]

@@gmela2402 Even 6 would be 1.67 very fine and considered thin

[@SenorbryanA]

Which would go for thin metal frames for a -5.25 and -4.50. The 1.67 or 1.74?

[@Tyler-Wiley]

Just go for 1.74 because you will be wearing your glasses all the time. Pick the lenses that are lighter.

[@user-ue9sz5rj9w]

@@Tyler-Wiley The error up to 1.67 is light, appropriate and very thin. I have a minus 5 with a deviation of one and a quarter degrees

[@francinepilon-grayton2674]

Can you get blue light blocker on 1.74?

[@3dPrintingNederland]

Yeah

[@aarononerhime2861]

Hello. I use a -20 lens. How thin can a 1.74 get. Aaron

[@user-ue9sz5rj9w]

Like the bottom of a cup, but it will be as thin as possible with plastic. You may go with 1.9 glass if you want.

[@shaikreshma9208]

I have power of -4.5 and -2.5 with thin frame ? Will 1.67 do justice? Which one is better?

[@RXSafety]

Hi Shaik, Yes it will help. It may make the less powered lens a little thicker so it fits into the frame properly since it is not a high prescription.

[@shaikreshma9208]

@@RXSafety thank U

[@sujatasapte5959]

My prescription is -1.50 and -1.25. So which lens index will be comfortable for me in terms of look and for use

[@RXSafety]

Hi Sujata, 1.59 is a recommended lens index but we always recommend our customers to confirm this with their eye doctor, they are the experts and best one to tell you what lens index should be the most recommended depending on your prescription.

[@Intuitz]

​@Chelle Bright I'm near the same prescription and trust they are still very much needed.

[@sujatasapte5959]

@@RXSafety Oh !! thanks ❤🙏 Now I am having 1.56 index with me😊

[@sujatasapte5959]

@@RXSafety & sorry for reading your valuable reply late. Because my phone was with my son and he don't have any idea about this.

[@brentkelly5445]

looked to see if anyone has my #'s but no so, my prescription is +2.25-2.25 x 090/ +2.50-2.50 083.....add +2.00. I want blue IQ reading /computer glasses and another pair polarized sun/work glasses. I'm looking at all the options offered 1.5/1.53/1.6/1.67/1.74. The sight recommends 1.74. Does it matter? can it be 1.5 even? ty, Oh and i usually get the shortest/narrowest rectangular frames for reading, but larger/est aviator's for sun/work.

[@RXSafety]

The 1.67 Index will work great.

[@zindehs1369]

I have -8.75 prescription would my glasses be too think if I got 1.67?

[@RXSafety]

Honestly it's not that the lenses will not work because they will and they will look 100x better than standard plastic but the 1.74 will look thinner. It's a personal preference

[@yashrajsinghchauhan7413]

My power in -18.5 and -9

[@alexbrujo666]

my rx is -1.25 -1.00 099 what high index would you recommend i dont want that fish bowl look

[@RXSafety]

I wold go with standard polycarbonate for such a mild prescription

[@zdravljeizmojebaste669]

i have -5,5, what lens should i buy 1,56 or 1,61 or 167? 1,56 are 5 bucks, 1,61 22 dollars, and 1,67 33 dolars... I'm thiniking about 1,61 would that be ok?

[@RXSafety]

I would recommend going with the 1.67

[@RXSafety]

You can see some frames we suggest for people with high prescription that work well with 1.67 and 1.74 lenses rx-safety.com/product-category/high-index-glasses/

[@zdravljeizmojebaste669]

@@RXSafety thank you very much. i 'm from bosnia, europe, i think you dont ship there?

[@RXSafety]

@@zdravljeizmojebaste669 Hi there! We do, just select the country when wanting to ship.

[@matt.noble05]

would it be worth it for -2 lenses

[@RXSafety]

I would go with Polycarbonate or 1.67 for a -2.0

[@ksnipe52]

Mine are +3.25 and they magnify my eyes a bit which I’m self-conscious of. Should I go for the 1.74? I have 1.67 now…

[@VJETRA]

1.6 ,1.7,1.9 if it have the same power it will always has the same magnification ,

[@3dPrintingNederland]

@@VJETRA not true

[@VJETRA]

@@3dPrintingNederland hmm okay magnification IS power so they're the same thing ... or am i missing sth?

[@3dPrintingNederland]

@@VJETRA the flatter curve on high index lenses makes for less magnification

[@VJETRA]

@@3dPrintingNederland but the same power will give the same mag right ? yes there will be less curve on high index but it's high index , less curve on high index will make bend as much light as high curve on low index , also if it has different mag how would it give him the same power?

[@siubhanmora-bruce2952]

I have -4.5 astigmatism and -5 near sightedness. Which should I get?

[@RXSafety]

Hi Siubhan, With your prescription, you don't need index lenses.

[@robertoc9136]

You'll look better in thinner lenses.

[@kristenscortes]

My prescription in my right eye is -3.00 and my left eye is -3.25 would 1.67 high index be a great choice ?

[@RXSafety]

Hi Kristen Cortes, thank you for watching. :) Yes, you can get 1.67 high-index lenses with your prescription. Please let us know if you have any additional questions.

[@user-ue9sz5rj9w]

1.6 👍🏻

[@MohdSameer-dk6rc]

Mam I have -12 left and -6 right Which is better for me 1.67 or 1.74 I ordered 1.67 is it good?

[@RXSafety]

Hi, Yes 1.67 is for your prescription.

[@josephelibert2464]

my prescription is --7.00 and --6.00 my eye doctor recommend a high index lens...not sure which number to get....any help would be appreciated.

[@RXSafety]

Hi Joseph, 1.74 is probably the best.

[@francinepilon-grayton2674]

I have -9.25 and use 1.67 but the frame you choose will help determine

[@deekshithamarripudi5796]

​@@francinepilon-grayton2674what type of frame you used

[@deekshithamarripudi5796]

​@@francinepilon-grayton2674can you please reply

[@sanmatisawalwade6694]

I have +0.25 eye number should I take 1.5 index or 1.6ac

[@RXSafety]

With +0.25 honestly any lens will do. I probably would suggest polycarbonate 1.59

[@VJETRA]

dude you have + 0.25 , it's almost nothing .

[@mjsm5245]

I have a -4.75 prescription, should I get the 1.67?

[@RXSafety]

Hi there! Yes, I would go with the 1.67 for that prescription. For more information, you can visit this link: www.rx-safety.com/product-category/high-index-glasses/

[@mjsm5245]

@@RXSafety even if my frames are very thin and dainty?

[@Segatari]

@@mjsm5245 How thin? Like those thin metal frames? Better go for 1.74

[@Bobaganusche72]

Do you add the diopter to the astigmatism prescription? I have -5.75 in both eyes with -2.5 astigmatisms, but I really want XTRactive lenses.

[@RXSafety]

Hi, yes you can get Xtractive Lenses with your astigmatism prescription.

[@jefflorenzo4180]

Is it worth purchasing 1.67 if my grade is -4.75 both eyes?

[@RXSafety]

Hi Jeff , Polycarbonate 1.59 would be a good option. 1.67 is most recommend for higher prescriptions.

[@robertoc9136]

1.67 always look less cokie.

[@shubhamkharat8754]

I have - 5.50 and I have made 1.74 high index lens still I feel it is thick because of the white rims what should I do?

[@RXSafety]

Non high index lenses would be thinner.

[@Angeline1331]

You can get edge polish for $25 at Pearle Vision and probably other stores that makes the edges clear instead of white. Actually they told me at 1.74 it is included there.

[@user-ue9sz5rj9w]

@@Angeline1331 The coating I mentioned is very excellent and makes the lens more beautiful and more resistant to scratches

[@nikhilapeddada3107]

Mam I have -8 in my right eye and - 2.25 on left eye . What lens would you sugget me..? Please reply me mam

[@RXSafety]

Hi Nikhila Peddada, thank you for watching. With both lenses you will get lighter, thinner lenses with superior clarity. For more information about them, check out our blog post about the subject here: rx-safety.com/2020/07/the-difference-between-1-67-and-1-74-high-index-lenses-and-whether-its-worth-it/. However, we recommend you to get your optician's opinion to know which lens material will be the best fit for you. Please let us know if you have any other questions.

[@nikhilapeddada3107]

@@RXSafety thank you mam

[@shoaibahmedkhan9676]

I have -8.5 Which index do you recommend? I have ordered 1.67 :((

[@RXSafety]

We would recommend for higher prescriptions as yours the 1.74, but if you ordered the 1.67, they are still going to work great.

[@deekshithamarripudi5796]

How much thick they are 1.67 lenses for your sight

[@deekshithamarripudi5796]

Can you please tell

[@TraZix]

Damn they really said people with bad genetics have to pay more 😂

[@Vampybattie]

LMFAO

[@Chitu46]

Hi,I have -4.75 and -5.00. I have ordered 1.74. It is ok? Have a great day!

[@RXSafety]

Hi, Yes, the index is the correct one.

[@user-ue9sz5rj9w]

I am 5 and 4 with a deviation of one, a quarter, and a half degrees. I chose 1.67 based on the recommendation of a seller whom I trust + previously I used 1.60 + 1.67, which is very thin for my size. It is ideal to minus 6, but from. 7 1.74 would be reasonable and not a waste of money

[@hyeni100]

I have a -6.75 and trying to save where possible. do you think getting 1.74 index instead of the 1.67 is worth it? Is it a noticeable difference?

[@RXSafety]

With your prescirption i would go wiht the 1.74 lenses

[@jefflorenzo4180]

@@RXSafety how about for -4.75 both eyes? Are 1.74 still worth it? Or 1.67.is okay

[@robertoc9136]

This is where the video is weak. Intuitively I'd say no; it's better to spend the money on a better brand; e.g. Hoya, Zeiss.

[@jaredmengsk6330]

Bring your prescription to a person who is willing to calculate the lens thickness by measuring your chosen frame dimensions and your pupil positions in the frame. Your being near-sighted means you are very capable of looking at the result measurements at very close range.

[@zoura3257]

I have -3.25 and trying to get prescription sunglasses what should I look for?

[@RXSafety]

Hello Zoura, you can choose from a variety of styles on our website. When you choose " Buy frame with prescription" it will take you to the page where you can add the lens options and next enter the values of your prescription. Please follow this link: rx-safety.com/product-category/sunglasses/

[@3dPrintingNederland]

-7 in both sides. Cylinder of -2 and -3. 1.74 double aspheric? Will rectangular frames work or will i notice distortion?

[@RXSafety]

It can cause distortion. A circular frame would give less distortion.

[@DurgaPrasad-gb8de]

My power -9 -10 which Index is best for me

[@RXSafety]

1.74 would be the best

[@robertoc9136]

"Higher rx" e.g. 10. What about 4 through 9? At what point is 1.74 no longer pointless?

[@user-ue9sz5rj9w]

It is useful and will reduce the thickness, but after minus 10 it will be a large lens

[@user-ue9sz5rj9w]

It starts from 7, you can use it and it is really useful, but 4-6 1.67 is ideal

[@sweetandsourkimchi-mylittl7658]

Which one would be better for +2 power ?

[@RXSafety]

The 1.67 would be best. You wouldn't notice a difference in thickness if you went with the 1.74

[@JL00212]

Is it weird that my new glasses with 1.74 lens is popping out on the side whereas my old glasses with 1.67 did not? They are same prescription and similar frame size/design. Maybe new one is 2mm larger in lens height and width.

[@JL00212]

The prescription is -5.00

[@silver831cali3]

@Mike Studmuffin are you implying that the side thickness of the lens will depend on frames shape? If so, would Rectangle, Square, Geometric or what shape would be best so the curvature won't be so obvious? My right eye -12.25 left eye -7.75 1.74 isn't great with my rectangle glasses

[@ZOMBIEZAHNpakuto]

@@silver831cali3 hi! Yes, the larger the lenses of the frame you want for your glasses are, the thicker your glasses will be. In general, if you want to avoid overly thick glasses you should go for the smaller glass frames, even if high index glasses can also help to shave off quite a bit of the thickness as well. Also, in general rounder lenses will work better with higher prescriptions. Hope I could help 😀

[@user-ue9sz5rj9w]

@@JL00212 1.67 is better. I have the same size and it is very thin and perfect

[@suhails.r1090]

-4.00 cyl which index i choose

[@user-ue9sz5rj9w]

1.67 is ideal and 1.6 is acceptable, but

[@BBKNBE]

👌 1.67

[@saikrishna55994]

-13 my power. Which index is suitable for my eyes

[@RXSafety]

With that high of and Prescirption you need to go with 1.74

[@RXSafety]

Also make sure to find a round small frame shape do no not go wiht rectangle. shape

[@amgdliou1800]

Believe it or not I have -21 for my left eye and -20 for the right one 😅

[@user-ue9sz5rj9w]

How do you see hahaha but you need 1.74 and it will also be thick or 1.9 glass will be less thick and still thick.

[@muneerali7503]

The 1.76 Tokai lens the best 😎 Japan 🇯🇵 💪

[@RXSafety]

Yes we will be offering a 1.76 index soon

[@dewydcb9864]

Good info. Also this lady is gorgeous lol.

[@kailashji777]

1.67 and 1.74 lens cost

[@RXSafety]

The difference depending on lens options is about 50-100 dollars

[@francinepilon-grayton2674]

95 in Canada

[@balusawant407]

normel index power number

[@troublemethis17]

for clarity's sake, pun intended, higher indexes are more dense SO weight is not a significant factor as it's basically a wash. btw, the industry in western industrialized nations are basically a racket. you can take a vacation to japan where they give you a free optician guided digital exam without appointment and come back in half an hour for fully done glasses w/ standard coatings included... maybe a few days depending on a complex Rx + add-ons. either way, you got a vacation out of it and walked out spending $40-250 near the top vs $450-700. btw, i've seen them have index 1.76 - 1.8 in places.

[@gaylecheung3087]

Why doesn’t anybody talk about plus lenses like for four sidedness plus lenses always talk about myopia not hyperopia

[@baburaomotewad2418]

I want reding glases power +16 if avalabal call to me

[@flipwarrior]

The higher the index lens is, the more blurry and distorted the peripheral vision will be from the view of the person wearing the glasses. So, if you want visual acuity, lower index will provide less distortion and clearer peripheral view.

[@user-ue9sz5rj9w]

You choose a lens according to your size, for example, minus 5 is better than 1.67, but minus 3 -3.5 to 4 will be sufficient. Minus 2.5 and less will be 1.56-1.50. Better than minus 7. 1.74 is preferable, but minus 2.5 is better. 9 will be mandatory