The code that may treat blindness

Neuroscientist Sheila Nirenberg has found a technique that promises to treat blindness, and it all began with her idea to crack the brain’s visual code…

A stream of light from the words and pictures is bouncing into the eyeball and falling onto photoreceptor cells on the retina. This visual information is passed on to output cells and then transmitted to the brain as a kind of code, where it is reconstructed to make up the letters in this sentence you are reading right now.

Degenerative eye diseases, however, can wreak havoc on this process, says neuroscientist Sheila Nirenberg of Weill Medical College at Cornell University. When they damage the retina, the image in front of you never gets further than the eyeball; the chain is broken.

That’s what makes the technology that Nirenberg has built rather remarkable. She has found a way to transmit a visual code directly to the brain, bypassing damaged cells in the eye. In other words, she can help the blind see again.

In the video above, she explains how her technology works and the eureka moment that started it all.

Comments

Why Do Spanish Speakers Sound Spanish?

Understand why Spanish speakers sound Spanish when speaking English with the help of Sofía Vergara.

10 Best Places to Visit in Spain

Splendid beaches, delicious cuisine, vibrant nightlife and lively fiestas all make Spain one of Europe’s best getaways. Because Spain encompasses several autonomous regions and islands, the country boasts one of the most widely diverse cultures and landscapes on the continent. Here’s a look at the top places to visit in Spain.

Spanish Flu: a warning from history

100 years ago, celebrations marking the end of the First World War were cut short by the onslaught of a devastating disease - the 1918-19 influenza pandemic. Its early origins and initial geographical starting point still remain a mystery but in the Summer of 1918, there was a second wave of a far more virulent form of the influenza virus than anyone could have anticipated. Soon dubbed ‘Spanish Flu’ after its effects were reported in the country’s newspapers, the virus rapidly spread across much of the globe to become one of the worst natural disasters in human history. To mark the centenary and to highlight vital scientific research, the University of Cambridge has made a new film exploring what we have learnt about Spanish Flu, the urgent threat posed by influenza today, and how scientists are preparing for future pandemics.

The Advanced Student's Corner

Search This Blog