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Retina

Retinal implant with power cable (Image: Retinal Implant AG)

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

Drawing of a Bio-Retina being inserted into an eye and affixed to the AMD damaged retina b...

At least 25-30 million people worldwide have age-related macular degeneration (AMD), one of the leading causes of blindness in middle-aged and older adults. The Israeli start-up Nano Retina has announced their new Bio-Retina, a tiny array of photodetectors which can be implanted directly on the retinal surface. Ready to enter clinical trials in 2013, the Bio-Retina restores vision to AMD sufferers almost immediately following the simple implantation process.  Read More

LG's five-inch LCD display can handle full 1080p HD video

LG has introduced an impressive new smartphone display that's expected to come to new handsets in the second half of 2012. The panel is five inches across, and features a pixel density of 440ppi with an aspect ratio of 16:9, capable of displaying 1080p HD content. This impressive new display trumps Apple's retina display, as well as the larger screens on phones like the Galaxy Note in terms of size versus pixel density.  Read More

A new retinal prosthesis could allow the blind to see, by using pulses of near-infrared li...

Age-related macular degeneration is the leading cause of blindness in North America, while retinitis pigmentosa causes approximately 1.5 million people worldwide to lose their sight every year. Individuals afflicted with retinal degenerative diseases such as these might someday be able to see again, however, thanks to a device being developed at California’s Stanford University. Scientists there are working on a retinal prosthesis, that uses what could almost be described as miniature solar panels to turn light signals into nerve impulses.  Read More

Physicians at the University of Wisconsin-Madison have succeeded in growing human retinal ...

Among the primary causes of adult-onset blindness are degenerative diseases of the retina, such as macular degeneration and retinitis pigmentosa. While some treatments have been developed that slow down the rate of degeneration, the clinical situation is still generally unsatisfactory. But if you could grow a new retina, transplant might be a possible cure. Now new hope is springing up from a research project at the University of Wisconsin-Madison in which scientists have succeeded in growing human retinal tissue from stem cells.  Read More

Apple sent out invites today to an event next Wednesday at the Yerba Buena Center for the ...

A new iPad is on the horizon. Apple sent out invites today to an event next Wednesday at the Yerba Buena Center for the Arts in San Francisco, where it promises to “have something you really have to see. And touch.” The event is set to go down at 10am, and is widely speculated to be the announcement of the iPad 3. The tablet is widely rumored to have an updated 2048x1536 “Retina” display, faster processor, LTE, and an 8-megapixel camera.  Read More

A clinical trial of the Argus II Retinal Prosthesis involving 30 patients has produced enc...

After receiving European market approval for its Argus II Retinal Prosthesis in 2011, Second Sight has published interim results of an international clinical trial showing encouraging results in blind patients suffering degenerative eye conditions that lead to incurable blindness.  Read More

UCLA's Dr. Steven Schwartz (center) transplanting specialized cells derived from human emb...

UCLA researchers are reporting a milestone in the therapeutic use of stem cells after two legally blind patients who received transplants of specialized retinal cells derived from human embryonic stem cells reported a modest improvement in their vision. Monitoring of the patients’ progress over a four month period also found no safety concerns, signs of rejection or abnormal cell growth. The researchers are claiming that the success of the procedure could pave the way for a new therapy to treat eye diseases.  Read More

The prosthesis that is implanted in and on the eye to give functional vision to the blind

The Argus II Retinal Implant from California-based company Second Sight has become the first retinal prosthesis for treatment of the blind approved for sale in Europe. The approval follows a successful clinical trial that ran for almost four years and saw more than 30 patients around the world using the device at home as they went about their daily lives. While the system isn’t able to restore normal vision, the majority of trial subjects gained the ability to perceive colors, recognize large letters and locate objects, while two were even able to read short sentences.  Read More

A human retina, which was the focus of the study

A better understanding of color vision has been gained in a feat of interdisciplinary and inter-institutional science. Researchers from neuroscience, nanoengineering, physics and electronics departments at universities on opposite sides of the world have come together to build a sensor that detects activity in the neural circuitry of the eye with a level of accuracy never before seen.  Read More

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