Hi, this is Wayne again with a topic “EyeCheck – Daxal Desai, Ashutosh Syal”.
Hey guys welcome today, I’m a student from Canada, actually I’m just graduated from engineering recently now, i’m here to present one of my fourth year design projects. So i’ve been working on this for about a year now and i’m here to talk to you guys about it. So there are a lot of us in the room today we’re wearing these little glasses, and we do that because we have poor vision now at some point whether you are wearing one of these are not. You must have gone to an optometrist to see whether your poor vision and to correct that mature, so in our old, these services are readily available and they’re accessible and at a relatively low cost. But what about developing countries? So this slide here just shows some of the numbers came out from World Health Organization, so they show that basically, 153 million people in the world just need glasses in order to prevent blindness and event in order to give them a better life. So this is a really a big problem that we’re trying to solve through our solution that we’ve built. So what is our solution? I’M just going to output to the camera, and so this tiny little point and shoot camera is basically our solution to this problem.
What we have here is just a simple touch screen in the back and there’s a Raspberry Pi hooked up to it and in the front we have this triangle array of infrared LEDs and essentially, what we’re doing is shining light into a person’s eye and, depending on What kind of error they have so, whether they’re nearsighted farsighted, and how much that’s what we output back on to the street in the back, so this is essentially a fifty-dollar portable, vidscreen ER and we’re building this basically for thermal guy camps. So I’m going to play. Switch back to my computer and put a little video here of how it works. Unfortunately, I can’t turn this device on right here, because not quite safe, yet so in this article, the right beneath the monitor you see an artificial eye. So this is what we’ve been testing on and is that, right now the artificial I can go from? We can arrange it from plus 3 power 2-5. So that’s! Basically, what your eye is on the model right here and right now the infrared is on and you see as soon as it the infrared LED LED goes on. So this is now infrared LED is on so right now, you’ll see Crescent in the in the artificial. I at the bottom, which indicates that this person has myopia, which means they have a negative power of minus 3. Now the handler is just going to switch myopia hyperopia, which is a positive power just momentarily. So here we can see that the eye is plus 5. Now, which indicates that this person has my hyperopia and their first farsighted so from the image or from the video. You can see that this is all done through this little $ 15 tool. Here I want to go through some of the current operates that we have on the market to detect permission and give you a proximate prescription so from left to right. We have.
The first is the retinoscope. This thing cost ten thousand dollars with all its little funny. Add-Ons and you need an ophthalmologist or trained optometrist to check what power you have. The second one is an auto refractor, so this is basically built for little kids and it’s like an automated device. You place in front of them and it gives you an approximate prescription of their eyes again. This caused eight thousand dollars the next over. We have P emission, which is one of the more recent developments in I care. It’S like it’s slightly bigger than what we have here. It’S a more of an SLR in your name, but again it gives you an accurate prescription around and it costs around eight thousand dollars. The last one is the latest development built by MIT and it’s called an etrog device, so nitra is basically a three dollar little add-on that you can stick in front of your mobile phone and when, basically, you have to get the user to look into this neat.
Your device get them to input a whole bunch of things and it figures out their approximate prescription. So, with all these tools, you can see that either they’re too expensive. The auto refractor is too bulky.
Mit HR needs user inputs, and so combining all of these deficiencies. We built this one tiny little fifty-dollar device that will recount all these problems. So what were some of our goals so be sure to current competitors? Our goal was to keep it under 300 300 per unit.
Now, just one prototype cost is 150. However, if we manufacture our prototype cause can come down to fifty dollars a unit. There’S no training required. Anyone could use this device just use.
All you have to do is just point it at a set of eyes and you’ll tell you the approximate prescription. What is the accuracy device so right now we can using this device and the software written thus far we can detect with ninety percent accuracy, whether you’re near-sighted, whether you’re, far-sighted and approximately, how much so with this device. Basically, what you have is the visual screener that can tell you your approximate prescription, your first value of your prescription, which is the cylindrical value, and it can do that with ninety percent accuracy and the next steps that we’re company working on is basically turning this device. It’S a safe enough, you’ll see that it has a bunch of it has a bunch of infrared LEDs which have to be safe, which have to be approved for safety before this can actually be used on a human being, the reason being, if you input too much Infrared radiation into your eyes at conversion right now, so we don’t want to do that. So that’s why this device is not turned on right here. The team has also partnered up with a bunch of organizations we are based in Canada, so we’ve partnered up with toronto. Kolkata foundation that is willing to fuel test these devices for us in november and we’re also partnering with urban I Foundation, which is the biggest I care in India. So I just want to show you a little image static image here. So this is what you actually get out of the camera after its processed through our software. So in here you can see a clear Crescent for hyperopia, which means that sorry about that, so here this is an image for hyperopia and myopia.
This is what this is exactly. What comes out of this fifty dollar unit right here and that’s it nice Detroit questions, comments ice is basically it’s about a meter away. There’S no person using it doesn’t have to test how far it is, and all you just need to do is just relatively align it with their eyes, because the software we built basically corrects for the axes and they’re told any more questions right. So the question was how close it it can approximate your prescription. This device we built so far is basically ninety percent accurate in telling you whether you have hyperopia and myopia.
It can also tell you your cylindrical value within point. Five died out there, so cylindrical value is the first value of prescription. You need a spherical value, an axis value, so those two can only be found, unfortunately, after doing field testing, because you need the data to write your own software for right. So one of the questions was: why are using infrared LEDs and not just simple LEDs? So the reason for that is, if you do so infrared LEDs, your eyes do not accommodate. So that means your pupil size that we’re trying to take a picture of will not constrict.
So we can do that, so the person has to sit in a dark room and just point this: if you use normal LEDs at the visible wavelengths, the per pupil will constrict, and that means that we cannot get these pressures. They won’t be able to see the Crescent with use visible wavelengths. Does that answer your question? So the instrument here basically uses eccentric photo refraction. So the principles are the exact same except some of the current offerings we have on the market either cost too much.
So the retinoscope is about ten thousand dollars. Next one is an auto refractor, which is very bulky, so the market we’re trying to hit with this is basically thermal. I camps, so they need to be portable to be accessible. Did if you go with common tools that anyone can use without training, and so this is what the twice-over comes any more questions. No, so with this with this camera, you don’t need to dial eight your pimples a lot of the, so that’s another disadvantage.
So the second one from the left, that’s an auto refractor and the retinoscope as well. Both of them need to dilate the optometrist or ophthalmologist have the dolly or I using psycho future or so one of the reasons was white lead our triangle. The idea is to basically so the closer the LED is to the camera.
The more light is shining, so, if you’re about, if i’m doing this from a mirror away, I need the basically between a single line of top, so the intensities as it so basically has the intent. The distance away from the camera increases the more the last light goes into left, for we need a triangular pattern. Any more questions, all right prayer. Thank you guys for coming. You .