Advertisement

Vision

Medical

Portable scanner designed to make eye exams quicker and easier

If you're like a lot of people, you don't make an annual trip to the ophthalmologist to get your eyes checked ... and you really ought to, in order to catch any problems before it's too late. If it were possible to get them checked at a regular doctor's office or clinic, though, perhaps you might do so more often. That's one of the reasons that a team at MIT have designed a new hand-held retinal scanner, that can quickly and easily be used anywhere.Read More

Medical

Scientists run eye cells through an inkjet printer

Imagine if conditions that presently cause blindness could be treated by simply by fabricating new tissue, and using it to replace the defective part of the retina. We may not be at that point yet, but we've definitely taken a step closer, thanks to research being conducted at the University of Cambridge. Scientists there have successfully used an inkjet printer to "print" rats' retinal cells onto a substrate, paving the way for the creation of custom-made eye-repair material.Read More

Wearables

eSight acts like a hearing aid for the eyes

If someone has difficulty hearing, they can use a hearing aid to boost the level of sounds reaching their ear. If someone has limited vision to the point that they're considered legally blind, however, it's not like they can just use an electronic "seeing aid" ... right? Actually, that's just what eSight is. Read More

Health & Wellbeing

Telescopic contact lens with switchable magnification to help AMD patients

Age-related macular degeneration (AMD) is the leading cause of blindness among older adults in the western world. Unfortunately, conventional optical aids provide little help for a retina which has lost the acuity of its central area. Now a team of multinational researchers led by University of California, San Diego (UCSD) Professor Joseph Ford has created a telescopic contact lens that can switch between normal and magnified vision to offer AMD patients a relatively unobtrusive way to enhance their vision. Read More

Science

Researchers transmit braille directly to the retina of blind test subject

Second Sight’s Argus II Retinal Prosthesis is definitely an interesting piece of technology, allowing a blind user to “see” objects, colors and movement in their environment. Ordinarily, this is done with the help of a video-camera-equipped pair of glasses worn by the user. In a recent experiment, however, researchers bypassed the camera, transmitting visual braille patterns directly to a blind test subject’s retina.Read More

Science

GRIN optical technology could mean better implantable lenses

Although many people may think that the lenses in our eyes are just like those found in cameras, there is in fact one key difference between the two – while man-made lenses have just a single index of refraction, meaning that they only bend light in one direction, our natural lenses refract light by varying degrees. This is why artificial implanted lenses, such as those used to treat cataracts, can create visual distortions. A new technology, however, now allows for the fabrication of lenses that work just like the ones in our eyes. Read More

Health & Wellbeing

Special contact lenses could potentially stop myopia from progressing

For younger readers with perfect eyesight, here’s something you might not know – glasses and contact lenses don’t do anything to cure nearsightedness, they only help compensate for it. In fact, the wearer’s vision often continues to deteriorate as they age. Now, however, a team of scientists have developed special contact lenses that they claim can halt the condition if it’s caught in childhood.Read More

Health & Wellbeing

EnChroma glasses designed to compensate for color-blindness

While many people may think that being color blind means seeing everything in black-and-white, such a condition is in fact quite rare. Instead, the majority of people who are classified as color blind are capable of color vision, but they have difficulty distinguishing red and green as distinct colors. EnChroma’s Cx sunglasses are designed to help in these cases, by selectively reducing the transmission of given wavelengths of light, thus allowing red and green to stand out.Read More

Health & Wellbeing

Retinal chip implant undergoes clinical trials

Retinitis pigmentosa (RP) is a degenerative eye disease that affects 200,000 people in the United States and Europe and has left 15 million people permanently blind worldwide. German biotechnology firm Retina Implant AG has developed a microchip that provides a useful degree of artificial vision in patients who have been blind for even long periods. The 3 x 3 mm (0.118 in) chip is implanted below the surface of the retina where it electrically stimulates the optical tissues. After successful clinical trials in Germany, the chip is now being tested in Hong Kong and Britain before moving on to planned trials in the U.S.Read More

    Advertisement
    Advertisement
    Advertisement

    See the stories that matter in your inbox every morning