Office Progressive Lenses: What Are They Good For?

[@rroolliinnss]

Doctors need to explain this shit in the beginning. I am pissed off.

[@johndance1362]

I'm just a consumer and I'm finding out what all of my local opticians either don't tell me or most probably don't know. I feel sure that they have not received proper training and are more like used car salesmen. Just maximizing profits without understanding the physics involved with the products they sell. I will be attempting to order eyeglasses from the source you recommend. Thanks for your videos! I viewed your video about renting/buying one of your tools to measure my "PD" as well. I'll probably buy one and use it for friends and family future purchases. I really appreciate your videos. I just wish that I was armed with your knowledge, thousands of dollars and years ago!😺

[@TaoBear204]

Thank you so much for taking the time and energy to make this video. This and several other videos you produced helped me to understand the limits to what lenses can do for clear vision particularly when a person gets older. I used to feel really anxious and frustrated with my glasses but now I understand and am far more willing to work with them to find the optimal balance. So that means at least two pairs of glasses - general, office and perhaps sports/movie glasses... still thinking about that last one. I have really good peripheral vision so it bugs me to notice the peripheral distortion which I now understand is an unavoidable consequence of lenses trying to at least two jobs. I'm sure astigmatism must complicate it further. It must be frustrating to deal with customers that just don't understand the limits to the technology. Thanks again!

[@1nf0fr34k]

I really, really liked your leaving comment about some customers are a PITA and if all customers are a PITA it's you.. a great thing to ponder for everybody :)

[@highnoon250]

Very interesting and entertaining. Nicely presented.

[@leonidfirdman7812]

Thank you very much for the excellent explanation!

[@Banzai431]

I just got fitted for a pair of office lenses... Thanks very much for the video. This is very useful, I've got a really good understanding now of how the lens is working.

[@bilahn1198]

I have computer glasses, Progressive from book to the screen. They work beautifully and I had no adjustment and no issues whatsoever. But add the distance vision and it was a disaster. They were absolutely intolerable. I'm fairly near sighted at a -5 so maybe that makes a difference. I use single vision for when I'm not at my desk or reading. Switching glasses is inconvenient, but it it's better than the alternative.

[@BrunoTheBrave]

You explain good sir. Thank you

[@tedjohnson64]

Excellent tutorial!

[@TrungLuu-World]

@LaramyKOptical, this is good-it took me a long time to find out IOT design. But somehow you forgot as if ZEISS Office Room or Shamir Workspace do not exist?? Shamir Workspace worked for me well in the past few years. Oh, btw, IOT Endless Office mentions 4m but not 6m, where can I get that?

[@LaramyKOptical]

We are an IOT lab so IOT focused. That video is over 5 years old, it looks like they dropped the 6m design. I can follow up with IOT if you drop me an email through the OpticianWorks website. John

[@camelCased]

Here in Europe stores and lens manufacturers are often advertising office spectacles as "degressive lenses". Their marketing materials suggest that the approach is to provide near prescription and then pick one of fixed negative add-ons (e.g. -1D, -1.5D, -2D) for distance. This makes me wonder, how those "degressive lenses" are actually different from your usual progressive lenses with the same limited range? Is it because progressives might be using hard designs to be more suitable for large ranges (with their narrow corridors) and degressives always using "soft" designs to be suitable for smaller ranges (and wider corridors)? Purely mathematically, if I have a Rx with +1.7D for reading, then a negative ADD of -1D would provide me with range from +0.7D up to +1.7D throughout the degressive lens. But how is this different from the good old progressive lens with +0.7D with ADD of +1D ?

[@LaramyKOptical]

Actually the term digressive is very common everywhere outside the US. In fact it is a term often used by the people that actually design progressive lenses. I'm a bear of simple brains but yes, as I understand it a lens can act as both a digressive and/or progressive depending on the power structure or power demands of the lens. You got it with power but I don't think it has much to do with hard-soft design however. Let me see if I can get an expert on board. John

[@tinalahti8410]

Design philosophy and quality varies by supplier but our (IOT) office designs are significantly softer than a balanced PAL and the visual areas in the center and bottom of the lens are much wider. Another benefit over using PAL with a fixed focal distance at the top is that the power profile continuously changes so, much like a PAL, you can find a place in the lens to see anything, just within a shorter depth of field. When presbyopes hit 2 diopters of add power the ability to find that right spot for close focal distances becomes incredibly valuable. www.iot.es/

[@JM-nu2kw]

Thank you so much for this video. I need office lenses for computer work and watching TV from around 2.5 m. My priority is computer work, reading and waching TV from bed or kitchen table. Would you recommend 4m or 2m distance?

[@LaramyKOptical]

That sounds like the 4m or the longest office distance that they offer in whatever lens series they have where you shop. I'd talk with the optician and let them guide/decide that way if it doesn't work for what you asked for (what you describe as your needs) you can ask for a remake in the other distance.

[@andrewtate9612]

Hey thank you for these videos, you have a talent for taking difficult concepts and explaining them simply. I do have a question for you regarding office/computer progressives… what’s the difference between a computer progressive lens, and say giving a standard progressive with 1/4 or 1/2 of the add on top of distance power, plus the usual add? Or 0.25 less on the add to open the corridor? Is there something about office progressives different from this? Should I drop the PD by a mm or two if I’m going to do this? Thanks!

[@LaramyKOptical]

I thought I answered that in the video? An office design has little to do with a standard progressive design. One tries to do everything the other is very task specific. You never, ever fit an ordinary progressive in any other way than as it is supposed to be. Never high/low/stronger/weaker etc. If you need an office lens you go with an office lens. John

[@andrewtate9612]

​@@LaramyKOptical Hi John, thank you for your reply. I did watch the video, and rewatched it again to see what I missed. Let me make sure I'm understanding.. the advantage of the office lens is an increase in corridor width, which is a function of the absolute difference in sph and add. Put anther way, the tradeoff in an office lens vs a standard progressive is a decrease in visual distance range with a reduction in peripheral distortion, correct? So for example if we take the classic rule of thumb of sph + 1/2 the add power, for a computer prescription, and set that as the distance power plus the full add in a normal progressive design, is that significantly different than an office progressive lens with a maximum distance of 1.3 meter or so? Would that give a similar effect, or is there some other feature of the office lens? Say camber or a variable corridor progression length or something else? I'm not trying to be dense, but what am I missing?

[@LaramyKOptical]

@@andrewtate9612 It is about the actual design software that creates the lens. It is about fine tuning-tweaking the design to be very task specific. The old Jeep vs. Miata idea. Designing the lens around the office distances lets the software further tweak the other areas of the lens (including the unwanted stuff) to work better. [They are not a standard progressive with different power distribution] Trying to mess with/play with a standard progressive design so it acts like an office doesn't work because of the overall lens design. I don't have a lens map series but that might explain it best. Perhaps your lab could send you some or maybe find them online. And, I guess I have to ask, why would you not choose an office design if the customer wants/needs an office lens? Since there is nothing to gain from trying to make a Jeep into a Miata.

[@mariomilunovic]

Now I know more than the average optician in my neighborhood.

[@LaramyKOptical]

Sadly that is probably a 100% accurate statement.

[@erodas8899]

Awesome video, very informative. Thank you 😁

[@LaramyKOptical]

Thanks for watching!

[@jpmiami1169]

Thank you John for the excellent explanation! Question: I work with two monitors and I just got my Office Progressive Lenses. I have some peripheral distortion if I look to my left monitor. I am assuming that I don't have a 3' to fit my shortest distance, correct?

[@LaramyKOptical]

If you can turn your head or move the monitor a little and find a sweet spot then your distance is OK. It is quite possible for a progressive to have more (or less) peripheral distortion to one side of the lens or the other. If you are glancing left you are looking through the temporal side of the L lens and the nasal side of the R. Give it a little time and if you try to move the L monitor just a little - it might not take much. John

[@overcomer4482]

Please if you could reply in a day as I have an appointment with my optician in 2 days. I wasted my money buy a pair of expensive progressive glasses 3 years ago and I was about to buy another one because I cannot use it for computer, I had to take them off and drag the on it monitor closer. So, should I buy the office progressive with 1m in order to have maximum comfort? Are the prices the same for the 4 different ranges? Also will I be able to read documents (near range) will them? Thanks in advance.

[@tolgasobac8850]

Thank you!

[@darrenelkins5923]

Great video thanks

[@lorisharing4142]

Hi John, this is so helpful. Just have a couple questions -- and I'm not an optician, btw. So, the visual fields you show on the white board for 1.3m, 2m, etc... are those with or without Camber? I've heard the 4m Office Progressive with Camber works great, and I'd love to go with that, but based on your diagrams here, and my need for ease with desk/computer work and reading music (-4.25, -2., 95, with +2.25), wondering if the 1.3m or 2m would be best. I'd appreciate your input.

[@LaramyKOptical]

That would depend on how far away that music is. I would think that desk/computer would fall within 1.3m (3') if your music does also go with the 1.3. If your music is out past arms length then probably the 2 might be the way to go. John

[@lorisharing4142]

​@@LaramyKOptical Thank you! My notes from another video you made reminded me that 1.3m is a little more than 4'... so that'll help out when I share a music stand, and otherwise within 3' will be perfect. Thanks again... I'm so grateful to learn from you... been telling everyone I meet about you great videos.

[@alexgouthro3869]

Excellent presentation!

[@sreenivaskampala]

Thanks for this detailed explanation. I work all day in front of Computer. Recently I got my annual eye testing done & I was told/examined that my power increased to +2.00 from +1.50(single vision only for reading). But after procuring new +2.00 glass I am not comfortable to see my computer with standard aprox.25 inches distance. This new glass is okay for reading but not at all suitable to work on computer. After analysis I found in an article that it is okay to go for one level low power glass which will suitable for both reading & to work on computer. I am in a confusion now to proceed further. Should I go for +1.75 or +1.50 as a common glass for both reading +computer OR start using +2.00 power glass for reading and bend myself forward :)) to work on computer, please suggest. BTW I tried with regular Progressive lens which was not successful in my case & I gave up.

[@LaramyKOptical]

Short answer is always go as low as you can. Plus sphere powers equal in both eyes are the same as off-the-rack readers. Do whatever you want and do whatever works for you. If an optician won't do it then buy online. Play around at the drugstore reading rack or buy a 10 pack of different readers and play around to see what work best for you.

[@sreenivaskampala]

@@LaramyKOptical Thanks for your quick response

[@Sunflowerprincess88]

Thank you for your video, but I do have a question. I understand that the traditional progressive corridor height (seg height) is measured at the pupil center, however, in your ABO study guide specifies the progressive 2 lens to be measured from the bottom of the pupil. Is thr progressive 2 an office lense? And I've asked other opticians, I've heard them say they measured 4mm above the pupil center. Does it depend on the brand or type of lens?

[@LaramyKOptical]

I just looked over the ABO Study Guide and don't see where it says that? There are only the two ways to measure for a progressive fit, pupil center or if you are consistently high lower pupil margin. That's it. 4 above would be a really terrible idea. Some office progressive used to have some crazy fitting techniques but I don't think that is the case anymore. If you have a screenshot of that in the guide PLEASE email me through the OpticianWorks website so I can fix it. Thanks John

[@Sunflowerprincess88]

@LaramyKOptical maybe I misunderstood, but right beside the picture showing to measure from the pupil center, and next to it shows the progressive 2 measured from the bottom of the pupil. What I'm trying to understand is what is a progressive 2? In what situation would I need to measure it from the bottom of the pupil? I just want to make sure I'm understanding correctly. That's all.

[@LaramyKOptical]

@@Sunflowerprincess88 That would just be the 2nd technique on taking a height. It isn't some kind of different type of progressive lens. The guide is getting a facelift for 2024 so I'll see if that can't be made clearer. Use the lower pupil if you consistently have remakes from fitting too high (often the case for very short opticians). If not the proper placement is pupil center and there are no exceptions.

[@LaramyKOptical]

Change has been made to 2024 ABO Guide.

[@lilyalilyam8328]

Thank you. How do you derive the prescription for 1.3m office progressive from a multi-focal prescription?

[@LaramyKOptical]

You don't. You provide the full distance and add and the computer takes over and figures it out. These are free-form designs.

[@knowwhey7559]

I recently picked up some office progressives. At their shop, everything was fine - but when I tried them at work, I realized that my monitors are a bit farther away. Another foot or 2 would be perfect. My questions are (and I realize that you can only guess), will they remake my lenses at no charge? They are a large, locally owned business that make their own lenses. Is this request a common occurrence, or am I overstepping my bounds? In case they will do it, should I measure the distance of my work monitors and have that information ready for them? Thanks.

[@LaramyKOptical]

Basically they sold you a pair of glasses that don't work so yes they should remake them. Yes be sure to bring the distances to the monitors with you. Someone is going to have to play with the lens power(s) most likely reducing it some. Who that will be might be the tough part. John

[@camelCased]

As another option - if possible, you might want to get some kind of flexible arm for the monitors. I got one for myself and now I can freely adjust the monitor to my liking to avoid eyestrains, neck strains, spine strains, mind strains :D ... Very comfortable, indeed.

[@LaramyKOptical]

@@camelCased OH YEAH! If that is an option it is an excellent one. Kind of like, "Don't raise the bridge - lower the river." John

[@melpakkamsrinivasan1612]

Excellent video! Many Thanks for explaining this so beautifully!

[@LaramyKOptical]

You are welcome. John

[@Dragoninja]

Seems like you would need a lot of glasses depending on the task you are performing. For example, 1 Pair for Driving (Distance). another pair for Reading (Up Close), another pair for Computer Use (Arms Lenth). I thought Progresive Lenses are supposed to take care of all of that.

[@LaramyKOptical]

People that don't need glasses do struggle to understand that, yes, you do need several pairs (sometimes 4 or 5) to live comfortably and get through the day. For people that NEED glasses the understanding comes pretty easily. This is the one you want: kzbin.info/www/bejne/eGSsZmqPjpWppM0

[@MilkeeWayz]

Thank you for the detailed explanation. I recently turned 44. With age comes presbyopia. I chose progressives for the first pair of glasses I’ve had ever. I work long hours in front of a computer. My prescription is .50 with add of +1.0. I haven’t yet gotten my glasses from the optometrist. But, I think I may have made the wrong choice by selecting progressives. If I were to purchase a pair of readers, should I select 1.5?

[@LaramyKOptical]

I'd be willing to bet you would be happier at the computer in a +1.00 or a +1.25 basic single vision reader. Maybe treat yourself to a "real" pair but certainly give the OTC's a try first. That 0.50 distance is (IMO) right on the border of unnecessary.

[@livingfailure7838]

What is the best way to check if the office lens is correct? Before it's sent out? Where would yiu read it? Sometimes we are encouraged to read the prescriptions, but we haven't had any office lenses come through

[@LaramyKOptical]

Sadly it is on a lens by lens - manufacturer by manufacturer basis. If you get in the Gorbot 7 from Zenon I'd call and ask the lab where it came from what they have on it, check the Zenon website and if there is a chart out there for it I'd get one. However I certainly wouldn't let it keep me up at night. If one came in treat it much like any other progressive and if you can get what you would expect for power about where you would expect it - I'd be happy and move on. John

[@darylmorse]

I'm interested in office progressive lenses for post cataract surgery. I will be getting aspheric monofocal IOLs targeting plano. With the lenses I will be getting, I'm told to expect some intermediate vision, but not much. I work with a pair of HD monitors sitting 50-70 cms away, so 1 m would be "distance". I would like to be able to use these lenses for reading up a book or my mobile up close, say 30 cms. Would office progressive lenses work for this?

[@LaramyKOptical]

That sounds like a scenario where an office lens should work well. Just find an optician that understands which distance design to use. Which sound like the shortest tru office style for intermediate/near only. The less you ask of it the better it will perform.

[@lilyalilyam8328]

My optician branch told me that they can mak a computer multifocals for me just by taking my regular multifocals and adding +0.75 power to the "upper" part of of the lens. Do you agree with this approach?

[@LaramyKOptical]

Yes, No, Maybe. Without knowing much more. I'm sorry but you seem to be kind of all over the place on your questions. I think you need to find an optician that you feel confident in and can work with 1:1. John

[@k30v6xxzeapm]

Can bifocals be better choice for office glasses than office progressives? I mean intermediate (65cm distance displays 95% od time) with full ADD portion (for 5% time mobile or documents 25cm distance)? I'm thinking about bifocals for car, bifocals for office and standard progressive for everything else, would that be good strategy? Going beyond 42 years, presbyopia not yet apparent, but I'm preparing 🙂

[@LaramyKOptical]

Office progressives aren't a great idea until you are older and your add has reached at least +2.00. (I think I mention that in the video). So depending on your powers you have many or at least a few years to go. Multiple pairs is always a great way to go. I use lined bifocals myself when driving at night. Start looking now around for a good optician who is willing to listen and work with you. John

[@k30v6xxzeapm]

@@LaramyKOptical So lined bifocals could be great choice also for office, I assume. If I have only 2 distinctive distances to look at (intermediate most of time and some near). Of course I will wait to see, how presbyopia will evolve, just theoretical thinking now.

[@LaramyKOptical]

@@k30v6xxzeapm kzbin.info/www/bejne/jYLXYa2bqNF-a5o

[@poncepilate100]

thanks from Morocco

[@LaramyKOptical]

You are welcome from South Carolina USA.

[@WritesWithCare]

Check your conversion factors:1.3m=4'3" (my mental calculation sanity check is "a meter is a little More than a yard")

[@Cameroncameron2000]

New optician here, when would a SV intermediate be a better option?

[@LaramyKOptical]

Anytime that a single vision captures all the range that an individual needs for a task specific pair. If SV covers everything that a person needs to see at their desk then go with SV. If they need to see beyond that or also something quite small then think office progressives. Connie the Customer says, "you can have my office progressives when you pry them from my cold dead fingers." Or something like that anyway.

[@RBZBGT]

Great video. Thanks !

[@LaramyKOptical]

You are welcome. John

[@steveshap1]

Does Laramy K produce lenses with the IOT Mobile progressive design? Is the Mobile a general or office progressive design? If it's a general design, how does it differ from the H25 near (Rogue) design? Also, you should produce videos discussing specialty progressive-type lenses such as the InMotion/Drive, Sport and blended bifocal, as well as the advantages/disadvantages of using digital freeform single vision lenses. Thanks for the great videos.

[@LaramyKOptical]

Steven, Drop me an email through the OpticianWorks website and I'll connect you with Janet who would be the best one to answer specific questions about brand cross-dressing. Curious your thoughts on FF SV too! Thanks John

[@steveshap1]

@@LaramyKOptical Thanks, I will email Janet directly about the product questions. She was very helpful earlier when she directed me to an optician who uses Laramy K here in NYC after I was curious from watching your videos. As for FF SV, I haven't tried it yet. I normally use both everyday and reading/occupational progressive lenses for work and leisure, but find myself more comfortable with my old SV reading glasses while working from home during the pandemic just using my laptop for hours a day. It's time to get updated lenses in the basic reading glasses, but can't decide if FF SV is worth the extra cost. There are lots of videos extolling the virtues of freeform progressives (and I'm sold), but little evaluating FF SV.

[@luisgomez1211]

Hello Laramy, I'm here listining your theme, interesting but I have to go to work, Walmart optical...see you...

[@LaramyKOptical]

Say hi to Wally for me.

[@oddandrerustad4363]

Love your content!

[@LaramyKOptical]

I appreciate that!

[@franshagen7540]

Hi, I understand the distortions increase of close range and longer range intermediate but instead of close-intermediate range what happens with long range-intermediate. When I drive with my single vision I have a hard time to see all information on my dash and navigator screen. As I dont need the reading zone from progressive 3 zones but are there 2 zones long range/intermediate progressive lenses?

[@LaramyKOptical]

A lined bifocal with a weak add.

[@franshagen7540]

@@LaramyKOptical Thank you very much.

[@exploreraa983]

3:41 could someone please explain... what is the harm of going to an office lens too soon??? i dont understand why someone with a 1.5 wouldn't benefit.

[@LaramyKOptical]

It just isn't necessary. The eye still has enough natural accommodation left that an office lens isn't needed. Heck if you only have a 1.50 and LOVE your office lenses that is great! I'm not saying they won't work for lower add powers. BUT - For the optician that wants a happy customer and good adaptation rates you want to wait until that add power creeps up a bit more. Remember this is mostly about intermediate so if we still have natural intermediate power why would we want to mess with that? Help?

[@rjamorski]

@@LaramyKOptical Thanks for the great explanation of the office lens and progressive lens in the previous material. I want to ask a similar question as @exploreraa983. I'm using an office lens for 1 year with +0,75 correction on both eyes. I know your opinion know about it. And I can agree, it was no problem for me to work with or without glasses on my pc. But since approx 2 months I recognized that the right eye is not in focus. After visiting the doctor I know that the right eye has astigmatism -0,75/10deg. As this astigmatism is more annoying does it make sense to order office lenses to correct astigmatism or maybe just single-vision glasses will work as well in the office?

[@nonsolorasatura9093]

So Office lens with minimum range of distance covered don't need any time for adaptation?

[@LaramyKOptical]

Very little.

[@rafaelo934]

Excellent video. “Bump up “ the add means ...?

[@LaramyKOptical]

Increase. If the lens order called for a +1.50 add someone might change it to a +1.75 or even a +2.00. Forcing the intermediate zone higher in the corridor. Bad idea... John

[@kgupta2205]

8:40 - focus on shortest computer distance - SINGLE VISION for minimum peripheral distortion.

[@LaramyKOptical]

Well yeah of course - but - this video is about office progressive lenses not single vision lenses.

[@kgupta2205]

@@LaramyKOptical no this comment was just for my personal reference nothing else. Excellent video. My intermediate vision clarity both in progressive and bifocal is poor. Therefore now I have to choose between office lens and single vision. Slightly difficult call for me to finalize for home computer use.

[@abd-ix5qd]

I am confused to get office progressive or the normal progressive

[@NirajPant2]

Good!

[@chrisrogers8033]

Thank you for explaining! I HATE progressive lenses and my optician said workspace lenses are NOT progressive lenses. Now I know to go the old fashioned 2-pair route. From a different optician.

[@LaramyKOptical]

Not like I'd post a reply like this on KZbin or anything but --- two or even three pairs of single vision glasses set for the proper length is a great way to go. Don't tell anyone but that is what I do. Never been a fan of progressives. I think it is because I have a very mild phoria or maybe I'm just weird...??? Of course it does mean you are keeping track of 1, 2, 3, 4 pairs of glasses! John

[@lynnettegarcia8125]

Progressive lenses are fabulous for general purpose, it gives the patient flexibility with day to day vision and they do need glasses for task specific use, ie; computer / reading / needle point / golf / sports in general. Which is what I tell my patients - different shoes for different events...

[@JoyfullyOrangeDeborah]

@@LaramyKOptical I originally Googled about prisms, couldn't find what I was specifically looking for, then stumbled onto your videos. This is video #4 I've watched & I learned way more than I imagined! I can now go back to my optician with knowledge (& screen shots) to talk about my recently remade progressive lenses that I believe still have prisms but weren't supposed to, as well as a pair of single vision for reading, sewing, & laptop viewing. Thank you John! PS, she increased my corridor from 11 to 13 but according to the previous video, both are bad!

[@tonyx3722]

I can't wear progressives at work. I don't know how people do it, tbh. I go with a computer progressive bi-focal. Computer distance and reading distance. This way they can expand the lens almost all the way as shown in the video since it is only 2-2.5 feet (60-75 cm) for the top part and readers distance on a smaller bottom portion of the lens, so it feels like i'm using a single lens glasses.

[@Eastbound84]

@@tonyx3722 do those have a line?

[@dxbek]

Of late I have a prescription for +1.75 for near reading... however the "magical number" for office progressive lense is +2.0,. hence I guess I should not go for it...what will be your advice

[@LaramyKOptical]

?????? If you use a +1.75 for reading then for intermediate you would use something weaker, like +1.50 or +1.25, etc. I'm not sure where this "magic number" comes from? Sounds like you need to find a good or better optician.

[@dxbek]

Thanks for the reply. Got to know from this video at 3:44, that +2.00 is the magic number. I understand from it that +2.00 is the minimum for near reading , if going for an OFFICE PROGRESSIVE. I hope I got it right, otherwise I appreciate if you can correct me....Thank you.

[@darrenelkins5923]

I’ve just paid some 460 for new lenses I was told they are their boost lenses - can’t find the actual definition While walking I’m getting sea sick. The distortion skews everything outside the focal area I said I need the glasses for computer work The area on a screen that is in focus is around 6 cm width. Around two to three words in focus with everything thing else very blurred As I move my head the words tilt at the top opposite to my movement I can barely see anything in focus. It’s like looking through the wrong end of binoculars and seeing a very small area with head movevement like looking through two panes on glass that distort either side of centre. It’s like looking through a spy hole. To read anything on the screen in moving my head in 3 planes to find focus every 6 cm. I’m seeing a lot of word shadows too. To read a standard paperback, I have to move my head three time to read a line of text It’s exhausting! I went to a respectable independent and was told that these were quality lenses. ( my previous glasses bought elsewhere were cheaper including the frame that I’ve reused) Is there a way that I can determine the width of the part of the lens that contains the focal corridor? As they are closed over Christmas I’ll go back in the new year, but I’d rather be armed with some evidence that tge quality of these progressive lenses are not as they have suggested. Thanks

[@LaramyKOptical]

I'm not familiar with "boost" either. As I mention over and over there ain't no magic pixie dust that makes one lens all that much better than another. You clearly can't wear the lens so stop trying. It certainly doesn't sound right to me. If you have worn progressives before then these were clearly made wrong/fit wrong. Without knowing the exact lens brand I can't even begin to find anything else about it. You can get some ideas on lens alignment and "see" some of the power pattern by holding them up in front of a very bright light source and finding the laser etchings. Is it possible you were put in a NAL design? I'd watch the other videos we have on progressives.

[@darrenelkins5923]

@@LaramyKOptical thanks for replying Just looked up NAL - interesting. Not sure what they put me in! but her measurements were taken by placing sharpie dots on my old lenses. I asked for an itemised receipt (UK) to be emailed to reveal the lens manufacturer etc, but nothing received. My previous lens were less than two thirds the price and i had no distortion AND honeycomb light reduction tech. I was just peeved with the fact that my first glasses the anti reflection film flaked off after 18months and that the top power was set at 700mm whereas my brief was that my PC screen is roughly 700mm dist and so i presumed that the centre of the lens would be set to 700mm and above that would give me at least a metre so i could still see the screen if i reclined.( it was the first pair of glasses i had so i was naive! - its only after that i thought that a proessional shouldve worked that out for me ) In fact i often use 3 screens so these new glasses are completely useless in that scenario I am binge watching your videos before i return to their shop when the christmas holidays are over. - at this rate i'll be more quailified than them! Thanks again

[@LaramyKOptical]

@@darrenelkins5923 The only measurement she took was with a sharpie? Or did they do a PD with a pupilometer and then a height with a sharpie? If the only measurements taken were with a sharpie - (unless she disappeared in the back with your glasses for a while) get your money back and run away as fast and as far as possible. That might explain everything.

[@darrenelkins5923]

@@LaramyKOptical she may have used my old lenses as you say. thanks for the message. Its all very helpful ideed. At long last ive been sent the lens information. - UK by the way Its; Hoya Daynamic 1.6 index with sensity Coating is high vision long life blue control Any advice always greatfully received!

[@LaramyKOptical]

@@darrenelkins5923 Hoya makes some great lenses. I'd put them up there with Zeiss. Of course they are only as good as the optician and the lab that makes them - but in general Hoya is pretty darn good.

[@jasonbolenbaker9622]

Love the videos. Can you do one on prism thinning/equithin?

[@LaramyKOptical]

Thanks. I may get to that some day. But, being a bear of little brain I find it a bit overwhelming when I get into it far enough to make it a lesson. That is why I end up going to this: www.laramyk.com/resources/education/surfacing/understanding-prism-thinning/ Or just Google prism thinning with Darryl Meister and you will find his white paper. Darryl was the best the field ever had. If you have a specific question email us through either website and we will see what we can do. John

[@timothylampron9175]

thanks

[@Thy2408]

You are the best

[@xasanhh2455]

I would like to get information about opthalmic calculation rx like center thickness and ed how do they work

[@LaramyKOptical]

Please look at the rest of our video offerings at the Laramy-K Optical KZbin channel.

[@socialfoundations]

as a teacher now remote teaching- i find myself needing office progressives. should i get reader/computer or extend a little more like the receptionist? ( for either walking around the house or in anticipation of returning to a classroom?)i believe the Only close prescription is best bc as you described i would keep a wider corridor to focus on why i got them- to read resources and interact with zoom On A Screen & to be able to look at my lesson plans send take notes. your saying one has to give up something was so powerful. i’ve been wearing glasses for 50 years- progressive for more than 10 and that maxim is a game changer. thanks

[@LaramyKOptical]

I think you answered your own question there... ;-) I'd lean towards less is more and go with the read/comp over the "receptionist" style. John

[@sonjastreuber8770]

*REALLY* appreciate the great explanations. I watched this and the previous video and am still wondering why the corridor width decreases and the peripheral distortion increases. As a musician, I use peripheral vision all the time and was assuming that progressive lenses were literally softened-transition trifocals.

[@LaramyKOptical]

Literally working on that video now. Look for it in a few weeks. John

[@sonjastreuber8770]

Thank you. I am literally in tears with disappointment and just sent my first progressive prescription back. If you could post the follow-on video link into the description to this one, that would be awesome.

[@LaramyKOptical]

@@sonjastreuber8770 Plenty of choices in "piano glasses" you just need to find a good optician! Might mean a little travel but find the right one and they will solve your problems. They will be specific to your playing but will give you what you need.

[@yogafrog2052]

The greater the difference between your full distance and near power, the the greater the area of peripheral distortion in a progressive. John has a great video on this topic. It’s titled something like “progressives and unwanted prism” or “the optical swamp” or something like that.

[@amacan01]

Would the office progressive work for a mechanic? Some things up close in a tight spot I have to remove my safety glasses just to get a better look. That is a no no.

[@LaramyKOptical]

Yes, it might do well for that. See also: kzbin.info/www/bejne/q4OYfWOXisqdjMU

[@balotaify]

4:43 I know 😁 😁 😁

[@herbertbraunvalle9031]

Why do you say is only for +2 or more and not 1.25 for example

[@LaramyKOptical]

If you only need 1.25 your eye is still capable of more than enough accommodation to not need an office lens.

[@alpaul4173]

Do you mean well into the 21st century?

[@LaramyKOptical]

Hi Al, The office lens came about in the 20th century.

[@Graham_Wideman]

@@LaramyKOptical you realize the 20th century is the 1900s, right?

[@sbmahapatra]

We know all these. What is the solution???

[@itorres008]

Not an optician, but 1.3 m is rounded to 4'ft, not 3 ft.

[@ItachiAli1993]

First

[@lucio20006]

Their are no good at all. Tpdont get fouled. Just get the bifocals if you have problesms reading close.

[@kenhogle7333]

progressive lenses are a thing of the past... I'm humored by the smartest optician's still push lenses that aren't that good.. actual educated Optician's will ask me if they see this video

[@LaramyKOptical]

Are you saying regular progressives for office use? I've read your comment about a dozen times over the last few days - I'm not really sure what you are saying? Progressives are certainly not a "thing of the past." Clearly nothing has come along to replace them. And a progressive is a compromise lens and a compromised lens but billions with a b of people are wearing them and are quite happy with them. If you are saying you love your office progressives for the office then I'd like people to read that. Thanks John

[@kenhogle7333]

@@LaramyKOptical do you wear progressive lenses ?

[@LaramyKOptical]

@@kenhogle7333 No because I don't need them. My distance vision is excellent without glasses and I have a bunch of intermediate "prescription" glasses around the house which cover everything else except for the smallest of print.

[@bentramer4281]

I like these videos, but you make everything way more complicated than it is.

[@leonidfirdman3505]

Thank you for great explanations!

[@gabrielaniculescu7288]

Thank you so much for such a great presentation !!!!