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Technology

Cheap Fast Eyeglasses from a Desktop Fabricator 279

purduephotog writes "Doctoral candidate Saul Griffith of the Massachusetts Institute of Technology and inventor of the Lego powered chocolate printer was awarded the Lemelson-MIT Student Prize for inventing a device that molds eyeglasses rapidly and cheaply. Best of all, he's motivated for the good of humanity."
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Cheap Fast Eyeglasses from a Desktop Fabricator

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  • Fool (Score:2, Interesting)

    by Anonymous Coward on Friday February 20, 2004 @10:45AM (#8339153)
    Best of all, he's motivated for the good of humanity.

    I'm sure he'll be overjoyed when he graduates, finds himself unemployed and realizes just how much money he could have made and helped the world by patenting his invention and licensing it out.

  • I predict... (Score:5, Interesting)

    by Pirogoeth ( 662083 ) <mailbox&ikrug,com> on Friday February 20, 2004 @10:45AM (#8339156) Homepage Journal
    Hmm, a device that can automatically figure out your prescription, and another that can make cheap eyeglasses?

    I see these popping up all over the place, like the "check your blood pressure here" devices.

    If it means that more people who can't afford vision correction can get glasses, whether in a poor country or not, I'm all for it.
  • by badmonkey ( 29600 ) on Friday February 20, 2004 @10:49AM (#8339182) Journal
    I could have sworn one optometrist i went to a few years ago had a machine that automatcially brought an image into focus for me. Way cooler than this stone-age notion of looking at the eye chart as the "doctor" flips lenses. Which one is clearer, one or two. Why do we keep doing this stone age crap?

    I'm all for automatic vision testing, I feel like my current prescription was issued by a talentless hack.

    Automatically testing vision and cranking out lenses is sweet. Next they just need to fire on an AR coating and everyone is good to go.
  • by Sporkinum ( 655143 ) on Friday February 20, 2004 @10:49AM (#8339185)
    To resolve this problem, Griffith has created a prototype device to test the human eye. Patients need only wear the device, which looks like an oversized pair of goggles, and look at the world around them. An electronic sensor superimposed on the goggles monitors the lens in the wearer's eye and adjusts the device's lens to cancel the refractive errors, thus determining the correct prescription.


    This sounded like even cooler tech to me. I like the idea of something that takes away the subjectivness of the traditional exam for a prescription. He could even throw a glaucoma tester into the goggles.
  • by Eagle5596 ( 575899 ) <slashUser AT 5596 DOT org> on Friday February 20, 2004 @10:51AM (#8339214)
    I'm interested in the uses of this machine behind eyeglasses. I've been working on several projects where we are creating instrumentation, and have been surprised to find that optics are both difficult to find in specific diameters and focal lengths, and rather expensive when you do find the optics you need.

    While not a big deal to major corporations who don't balk at shelling out $20 a lens for custom work, for academic projects and independant research, that is a significant chunk of the cost of our prototype, considering the ease and realtive low cost involved in obtaining a microcontroller these days.

    I imagine that, since he can make eye glasses, producing DCX, PCX, DCV, and PCV lenses would be easy too. I'd love to see this kind of machine available at academic institutions for producing parts for research.
  • simplifying sight (Score:3, Interesting)

    by JWG ( 665579 ) on Friday February 20, 2004 @10:55AM (#8339241)
    glasses and eyesight used to be one of those really crazy scientific endeavours. how many of use have had huge, unwieldy glasses when we were younger, and trips to the optometrist were like going to some strange laboratory? things like this are fantastic, simplifying the field and making it more accessible to all. i heard about another system developed that can diagnose stimatism by analyzing the red-eye in a photograph. these kinds of scientific endeavours inspire others!
  • Re:Well... (Score:5, Interesting)

    by cliffy2000 ( 185461 ) on Friday February 20, 2004 @11:00AM (#8339298) Journal
    Yeah... who could have seen a Google cache link posted by the editors coming? Not me!
  • Re:I predict... (Score:4, Interesting)

    by mrgeometry ( 689087 ) on Friday February 20, 2004 @11:02AM (#8339315)
    Actually, according the link in the original post "molds eyeglasses [mit.edu]", he has come up with a goggle-like device that you wear, and as you look around it observes how your eyeballs and lenses change, using feedback to determine the correct prescription... it's in the article about halfway down.

    To me, this seems at least as interesting as being able to actually manufacture eyeglasses. I mean, that's great, but cheap and quick fabrication is ... not really old news, but ... people have been working on that kind of thing for a while, right? How much of his eyeglass fabricator represents significant new advances, versus putting known techniques to a new (and highly laudable!) use? Maybe I'm wrong there, I don't know. But this prescription sensor seems really amazing. Being able to monitor the shape of the lens and cornea as they flex around.... Am I wrong? That seems pretty amazing to me. But he didn't win any awards for that part of it, so maybe that's actually less significant?...

    zach
  • by SmallFurryCreature ( 593017 ) on Friday February 20, 2004 @11:12AM (#8339398) Journal
    How about those of us who rather were glasses or contact then having someone cut at our eyes with a laser? -5 ain't so bad as being blind thank you very much.

    But seriously this guy made two wonderfull inventions. They now collect "old" glasses to send to third world but this is a logistics nightmare.

    Imagine a simple jeep outfitted with these inventions doing the rounds in poor areas. Put the tester on and voila few minutes later a pair of glasses. 1 day per village. Couple of jeeps. Shouldn't take long at all (after all it is not like glasses need to replaced that often, even in the west once a year is good enough even for still growing kids).

    As far as I know it ain't the material that is costly in glasses but the whole distribution process. Plenty of bargain chains around that can offer really really cheap glasses due to scale and not offering specialist lenses. This looks even cheaper for hard to reach areas.

    Brilliant.

  • by jstave ( 734089 ) on Friday February 20, 2004 @11:12AM (#8339401)
    Actually, if these goggles could be made small and light enough, it sounds like they could *be* the glasses -- kind of an autofocus for your face. No more bi/trifocals!
  • by SmallFurryCreature ( 593017 ) on Friday February 20, 2004 @11:18AM (#8339441) Journal
    There are cheap stores with cheap frames but they offer a very small selection.

    In more upbeat stores frames are closer to designer clothing. You pay because the costs of designing a new model is only spread over a few models. Ford Focus costs less then say the latest ferrari and that ain't just the cost of manufacturing.

    But yes for those in need a single frame design in a couple of sizes (for different size heads) is not that expensive. Just ask any army that used to issue soldiers with glasses. Or for that matter look at the cost of sunglasses.

  • Re:Anthem (Score:2, Interesting)

    by Anonymous Coward on Friday February 20, 2004 @11:42AM (#8339675)
    Or, instead of reading speculative fiction, maybe you could read "The Story of My Experiments With the Truth" by M.K. Gandhi to find out exactly what would happen if more people in the world were motivated by altruism rather than the almighty dollar.
  • by Unknown Kadath ( 685094 ) on Friday February 20, 2004 @11:44AM (#8339701)
    There's the fashion angle, but the frame makers also have a product that people truly need. What am I going to do, not wear glasses? I don't have a choice; I couldn't read the text box I'm typing in without them. It's a seller's market.

    I don't need or want the very latest style, but I do want a pair of glasses that fits, provides a decent field of corrected vision, flatters my face, *and* is comfortable and durable. This runs me a couple hundred bucks, but glasses are something I wear all day every day and enable me to function...my myopia is such that I would qualify as blind if it were not correctable. The prices on non-designer frames are not unreasonable, given how seldom people replace them and how vital they are.

    Think about it this way...if you had to put something directly over your eyes without which you couldn't carry out the most basic day-to-day activities, wouldn't you want it to to be high-quality and reasonably attractive?

    I don't know if my reasoning applies to people with better vision, who can get by without glasses for most things but still need to wear them for driving and such, but I've never felt cheated by the cost of my frames (and they came with nifty magnetic sunglass lenses--stylin' and oh-so-practical).

    -Carolyn
  • by bluGill ( 862 ) on Friday February 20, 2004 @11:48AM (#8339731)

    Yeah, all the eye tests I've had in the last few years have started with the machine. I'm told that some places just use the machine, but I've never seen one and I wouldn't go to one.

    I go to the eye doctor to have my eyes checked. This is more than just get the correct glasses. The doctor needs to look in my eye and make sure that all the pieces are still in place.

    I've heard of several different problems that need to be checked for once in a while. They all have complex medical names that I haven't a hope of spelling. See your eye doctor regularly and make sure that if you get one of them, it is corrected early.

  • by shokk ( 187512 ) <ernieoporto.yahoo@com> on Friday February 20, 2004 @12:04PM (#8339894) Homepage Journal
    Neal Stephenson's The Diamond Age [amazon.com] was a good fiction book on the effects of a society where people have their own personal matter reconstruction equipment. Those with the cheap units are subjected to lives full of cheap commodity throwaway (but completley recyclable!) things, while those with more money for the better equipment can have better, higher quality things. And those able to afford real hand-made objects seem to hold themselves above all that.
  • by drox ( 18559 ) on Friday February 20, 2004 @12:08PM (#8339925)
    The experiences of folks I know who wear glasses (I don't) has been that the lenses are not the biggest cost, it is the frames.

    They must not have ghod-awful prescriptions like mine then. The lenses are still the most costly part of my eyeglass purchases.

    That having been said, I have to ask the same question: Why do frames cost so much? I see non-prescription sunglasses at convenience stores -- with frames not too different from what I'd want for daily-wear glasses -- that cost less than US$20. But just try to find frames for prescription eyeglasses for under US$150. After spending upwards of $US200. for lenses, I'm not pleased about having to spend almost that much for frames so I can actually use the lenses.

    It can't just be the designer names either: Designer (non-prescription) sunglasses are cheap; why can't prescription frames be priced the same?

    My guess is it's because it's a captive market. If you can't wear contacts and don't want surgery, you're stuck paying their exorbitant costs. I wonder if the growing popularity of eye surgery for vision correction will drive down costs, but I'm not holding my breath.
  • Re:I predict... (Score:3, Interesting)

    by zeux ( 129034 ) * on Friday February 20, 2004 @12:11PM (#8339953)
    And it's also better for the countries with a social security system.

    At least Iknow that in France the government gives you money (not all the money you need but still) when you buy new eye-correction glasses, both for the glasses and the visit to the doctor to get a prescription.

    It's very expensive for the government and this device could help lower the bill so the spending could be used somewhere else.

    Very good stuff and interesting possibilities here.
  • by bobroberts ( 461651 ) on Friday February 20, 2004 @12:14PM (#8339997)
    Imagine downloading and printing a new bowl for your food processor, or a new toy for your kid.

    Please don't make me imagine that. My boy already has way too many toys as it is without being able to print more. Every floor in the house is covered with little bits and pieces or puzzles, blocks, etc.

    What I'd rather have is a Mr. Fusion on my desktop where I can drop whatever annoying electronic toy of the week he's playing with and recover some of the energy that went into making it.
  • by Simonetta ( 207550 ) on Friday February 20, 2004 @12:30PM (#8340165)
    I have wondered if it were possible to make a program that could help determine the shape of the corrective lens needed for a vision defect.

    Since with high resolution monitors and 256 (or more)levels of gray available, it should be possible to create an 'eye chart' that looks bleary and out-of-focus to a normally-sighted person but sharp and clearly-focused to someone with deformed vision.

    I imagine a program where the user can adjust the software implementations (precise changes on the screen regards to the blurring of the chart characters that mimic the effect of an individual lens) of the various corrective lens stages of an eye exam. When the user is seeing clear and focused characters on the eye chart, the program would know from the distortions of the normal chart needed to create this clarity exactly what the eyeware prescription would need to be for this individual user.

    The user could send the eyeglass perscription to a off-shore eyeware maker and get perscription glasses made at a tiny fraction of inflated American prices. Or order the glasses made by the method developed by the subject of this article.
  • History (Score:5, Interesting)

    by jafac ( 1449 ) on Friday February 20, 2004 @12:32PM (#8340173) Homepage
    If you read about the history of eyeglasses, you'll learn that back in the middle ages, when what we, today, call "proper" eyeglasses (not just a simple magnifier, but a lens that corrects for nearsightedness or farsightedness) - were invented, in Venice Italy, their fabrication was a carefully guarded trade secret. Corrective eyeglasses were for the extremely wealthy only. Among the extremely wealthy, of course, were the keepers of this secret.

    Think about the millions of people who were functionally blind, and could not afford glasses due to this trade secret.

    And now - due to openness of the technique, and this new technology, optical health insurance (and the incredibly obnoxious markups on lenses and frames that came with it) may no longer be necessary. Let's hope so.
  • by R_Harrold ( 669587 ) * <robinton@benden.com> on Friday February 20, 2004 @01:00PM (#8340393) Homepage
    A device similar to this already exists Last time I went in to a new optometrist they had a gadget which they had me look into which 'automaticaly' determined my prescription by (I Assume) measuring the distortion experienced by a low power laser shined into my eye. The result was fairly close to my actual prescription and would be quite close enough especially if you didn't have ready access to the miscellaneous additional gadgets required to really fine-tune a prescription. Another note is this, I'll use a nearsighted person with astigmatism for this example, The variables for each eye are: Spherical Abberation: Negative number measured in .25 increments ranging from 0 (no correction) to -8 or more (lots of correction) Astigmatism: Abberation measures in .25 increments ranging from 0 to the amount of spherical correction. Axis: The axis along which the Astigmatism occurs (I don't know what the increment for this is, This one has been constant for me for the past 20 years so I haven't seen much in the way of samples... I do know that 70 degrees and 110 degrees are valid values) Note that I am not an Optometrist, so someone who is more aware should feel free to correct me, but If I make the following assumptions we end up with quite a large problem to be placed on a chart: Spherical: 0 to -8.5 -- 34 possible Astigmatism: 0 to Spherical -- 0 to 34 possible Axis: 0 to 180 degrees in 10 degree steps -- 18 possible lots of combinations spring to mind, I'd say go with the existing automated machines. Possibly combine the marketing for the automated lens fabrication with a program to encourage optometrists to donate their older 'automated prescription baseline devices (or whatever they are officially called'.
  • by schwatoo ( 521485 ) on Friday February 20, 2004 @01:33PM (#8340674)

    No pun intended.

    I have keratoconus (basically a deformity in the cornea) and some days I can see fine and some days things are a little blury. The only solutions are either rigid contact lenses (ick) or cornea replacement surgery (double ick). Glasses aren't much of a solution for me because my eyes shift so much that a prescription would maybe last a month or two at most.

    Maybe with this device I could cheaply fab lenses that would work for me until my eyes morph again. And then all I'd need to do is fab another pair.

  • by Ralph Wiggam ( 22354 ) * on Friday February 20, 2004 @01:48PM (#8340860) Homepage
    I've worked with the stuff you're talking about on one project. You're right, it's somewhat delicate. But you're assuming that it's impossible for the process to be improved. In the early 1900s, the motor oil in cars had to be changed every few hundred miles. Nobody said "This car thing will never work because the oil sucks". No, they hit the lab and developed better oil.

    My guess is that they'll develop a 2 stage process. The first stage will be like what we have now. Then some sort of baking or chemical treatment will harden it.

    -B

  • Why glasses? (Score:1, Interesting)

    by Anonymous Coward on Friday February 20, 2004 @02:05PM (#8341071)
    Saul, here is an idea for you.

    Why glasses?

    Why not straight to the root of the problem?

    How about a low-cost, self-administered laser eye-surgeon machine?

    Or maybe even further, some iris muscle(?) adjuster nanosomething?

    Or further down the road, a gene screening and adjusting nanosomething for pregnant women, so that perfect sight corrections would be achieved at the fetus state?

    Okay, that may cause Suppressed fetus memory syndrome, and all the legal craps that follows, right?

    How about egg or sperm penetration pre-treatment?
    Possibly combined with some afrozediac...

    Ah... I just love that my mind can go high without any chems :)
  • by Anonymous Coward on Friday February 20, 2004 @08:53PM (#8346012)
    Ok, call me an ogre, but do glasses really have to
    be custom made? I don't believe so. My vision
    was measured around 4.00 diopters which was
    something like 20/300. Anyway my siblings and parents
    all had vision which varied between 3 and 5 and because
    I used to constantly break my glasses and could get by
    amazingly well with their glasses. I know it wasn't perfect,
    but I would wear them for months at a time.

    I honestly think you could do more good for less money
    by mass producing lenses in common diopters settings and
    just letting the buyer pick his own, like pants or shirt
    size. If the buyer wants to pay extra money to get 20/20
    vision instead of 20/40 then let him.

    Look at something like prescription lenses for sporting
    equipment. Often that stuff is only sold in 0.5 diopter
    increments (i.e. 1.0-1.5-2.0-2.5...etc)

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