Liver recipients ‘at high AMD risk’

April 29, 2013

People who have received liver transplants have double the risk of developing a largely incurable cause of blindness in the elderly, a UK-based study has found.

Researchers discovered that almost two-thirds (65%) of patients had some form of age-related macular degeneration (AMD) and have suggested the introduction of regular optician monitoring for all liver transplant recipients.

The unexpected figure is double the level seen in the general population.

During the three-year project, the team led by Professor Andrew Lotery at Southampton, UK General Hospital studied 223 Western European patients 55 years and over who had undergone liver transplants at least five years ago to find out more about the relationship between the complex eye condition and liver transplantation.

“However, with this knowledge, we now know much more emphasis should be placed on the eye health of liver transplant patients and that should involve regular and ongoing optician monitoring and prompt referral to ophthalmologists if AMD is detected.”

For more info: http://www.littlehamptongazette.co.uk/news/regional/liver-recipients-at-high-amd-risk-1-5023515

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Braille-display Based Phone Invented in India

April 23, 2013

World’s first true phone for the blind, from the looks of it, that features a display capable of converting text and pictures into Braille and raised patterns has been invented in India.

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Based on Shape Memory Technology – a concept whereby metals expand and contract to retain the original shape – the phone’s screen has grid of pins. These pins move up and down as required thereby elevating or depressing the display based on the text or display to be represented. The concept took around 3 years to materialize and with the validation and iteration stage receiving a great response the prototyping is currently going on.

For more info: http://paritynews.com/mobile-telco/item/1005-braille-display-based-phone-invented-in-india

 


New Way to Read with Low Vision

April 22, 2013

Optelec ClearView+ Speech Makes Reading Easy Again
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The ClearView+ Speech combines video magnification and accurate text-to-speech that makes it easy to select what you want to read. It allows you to enlarge materials to a more comfortable size or change the high contrast viewing modes with one master dial. To activate the Speech feature, just simply touch the screen and instantly enjoy listening to articles, letters and books with a natural sounding voice and full page overview.

For more info:  http://www.optelec.com/en_US/optelec-clearview-speech

or call 1-800-826-4200


Low Vision Sewing Techniques

April 20, 2013

There are several articles on the Web about low vision and sewing techniques.

1 . Ample lighting. Use a total spectrum lamp.

http://www.verilux.com/

magnastitch 22. Magnifying attachments for your sewing machine.
Magnistitch Deluxe Sweing Machine Magnifier

http://optelec.lowvision.com/magnistitch-deluxe-sweing-machine-magnifier.html

3. Self Threading Needles.       neeldes

http://www.createforless.com/Schmetz+Self-Threading+Needle/plid4809.aspx

For more info: http://janomesewingmachine.danielcadams.com/low-vision-sewing-techniques/

http://www.ehow.com/way_5656096_low-vision-sewing-techniques.html


Eyeglasses will give blind people the ability to Read

April 20, 2013

What began as a project for a student competition may possibly result in a breakthrough for the 39 million people suffering from blindness worldwide.

Maria Pia Celestino, Viurniel Sanchez, Jesus Amundarain and Esam Mashni from Florida International University were instructed to develop a social entrepreneurship project for a business class. What the team came up with was a pair of lightweight eyeglasses capable of reading text to the blind. Blind_glasses_01

The invention consists of a pair of eyeglasses, 2 Micro HD cameras, and earphone and a 4 GB Hard Drive. On either side of the eyeglasses you will find 2 Micro HD cameras to capture the images of the text. The text is then quickly processed by the 4 GB HD and software creating an immediate playback to the wearer through the earphone.

 Using simple components, the team wishes to make this a cost-effective solution for the vision impaired.

 For more info:  http://www.electronicproducts.com/Optoelectronics/Image_Sensors_and_Optical_Detectors/How_a_pair_of_eyeglasses_will_give_blind_people_the_ability_to_read.aspx


April 15, 2013

The U.S. Food and Drug Administration has authorized use of an iPhone app to allow retinal disease patients to monitor their vision between visits to the doctor.

visiontrackMyVisionTrack was developed for elderly patients with serious retinal diseases, such as age-related macular degeneration and diabetic retinopathy. It incorporates a proprietary shape discrimination hyperacuity (SDH) test by the Retina Foundation of the Southwest, which developed an eye exam that’s suitable for a PC or smartphone and is unaffected by factors such as user distance.

The test consists of three circles, one of which is distorted, Mike Bartlett of Vital Art and Science (VAS) said. The app instructs patients to “touch the circle that is different,” he explained. “As they get it right, the distortion gets smaller; when they miss, the distortion gets bigger,” he said.

Then the test moves to the user’s threshold until the distorted circle is no longer visible. An algorithm determines a patient’s vision threshold using statistics generated by the app.

For more info: http://www.eweek.com/mobile/iphone-app-for-vision-tests-gains-fda-approval/

http://myvisiontrack.com/


Alpha IMS Retinal Implant for blind retinitis pigmentosa

April 15, 2013

The Alpha IMS is a sub-retinal implant developed by Retina Implant AG. It is a new treatment option for patients in the UK with retinitis pigmentosa who are blind, to help restore vision.

Alpha IMS is a 3×32mm wireless microchip that features a 1500 pixel resolution. The microchip captures light and in turn stimulates the optic nerve, which delivers visual signal data to the brain. The patient is able to see a black and white image. To adjust the brightness, a dial is fitted just behind the ear and the Alpha IMS is powered by a wireless pocket battery.

For more info:  http://www.hsc.nihr.ac.uk/topics/alpha-ims-for-blind-retinitis-pigmentosa/