Originally posted by MarcE
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Digital Eye Testing Chart
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Using Sharp VA in 11 exam rooms...LOVE IT!
I have been using Sharp VA digital visual acuity software for over 4 years (in 11 rooms). It has been a wonderful addition to our practice.
Patients love it. I go from testing to education with a single computer program. I understand that a new version will be released soon, and that it will have SEVERAL great new features. I expect that the price will increase with the new version.
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I don't like dealing with companies that have no phone numbers, especially when it comes to support. Free support? Maybe, but how soon, and it's all via e-mail?Ophthalmic Optician, Society to Advance Opticianry
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Originally posted by kcount View PostDuh.. I answered a post from 2 years ago. Hate it when I do that.Ophthalmic Optician, Society to Advance Opticianry
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For anyone capable of using FOSS (free open source software) there is this:
I'll be setting it up on a Raspberry Pi with a usb remote. Expect it to cost $250 with monitor, mount, cables, remote.
I'll write back once I have it tested.
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TV Feature: displaying images
Originally posted by hbvision View PostFor anyone capable of using FOSS (free open source software) there is this:
I'll be setting it up on a Raspberry Pi with a usb remote. Expect it to cost $250 with monitor, mount, cables, remote.
I'll write back once I have it tested.
It would seem that such a solution would work for displaying eye testing charts by displaying the eye charts in whatever software creates them, and then taking screen shots and saving those to the USB drive.
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Originally posted by hbvision View PostFor anyone capable of using FOSS (free open source software) there is this:
I'll be setting it up on a Raspberry Pi with a usb remote. Expect it to cost $250 with monitor, mount, cables, remote.
I'll write back once I have it tested.
Thanks
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Originally posted by danielccn View PostDid you manage to setup the snellen software? i wanted to try , but did not have a chance ...need to download a copy of linux...i wanted to do it on VMWARE... if u setup...can u tell me other than snellen chart...what other features is in that software other than snellen chart...
Thanks
I'm a hardware and software developer and have been for nearly 40 years. I can think of a half-dozen much less expensive ways to get this done using off-the-shelf components. Building an entire Linux machine just to show a single graphic seems to be overkill.
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Lots of goodies.
Visual acuity is indeed measured by a Snellen chart, but you have to run a few patients to see what other things would help.
My setup is programmable, so I can show a series of charts in a certain order.
There are "line isolation" options, as well as "letter isolation" options.
There are refracting aids, as well, such as polarized projection (not on an LCD screen, of course) to be used in conjunction with polarized lenses in the phoroptor for special tests, etc.
It's more involved than...meets the eye!
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Originally posted by drk View PostLots of goodies.
Visual acuity is indeed measured by a Snellen chart, but you have to run a few patients to see what other things would help.
My setup is programmable, so I can show a series of charts in a certain order.
There are "line isolation" options, as well as "letter isolation" options.
There are refracting aids, as well, such as polarized projection (not on an LCD screen, of course) to be used in conjunction with polarized lenses in the phoroptor for special tests, etc.
It's more involved than...meets the eye!
Nothing you've mentioned is impossible, let alone difficult, for the platforms I have in mind. I can see this problem being solved for ~$100 in hardware and a fraction of that for the software - and no need to load Linux.
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