A new laser eye surgery fixes your vision without any gnarly eyeball slicing

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As someone who wears glasses, the idea of corrective laser eye surgery is certainly tempting. But then you start reading about how the invasive surgery is actually performed, along with some of (admittedly rare) risks, and suddenly glasses don’t seem so bad. Things could change, however, thanks to research coming out of Columbia University. Researchers there have developed a new noninvasive laser eye surgery which could permanently correct vision — minus any of the less pleasant-sounding aspects of regular laser surgery.

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Researchers create the first 3D-printed corneas

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Researchers at Newcastle University have been able to 3D-print a biocompatible corneal framework using a new gel formulations that “keeps the stem cells alive whilst producing a material which is stiff enough to hold its shape but soft enough to be squeezed out the nozzle of a 3D printer.”

There is a significant shortage of corneas available to transplant, with 10 million people worldwide requiring surgery to prevent corneal blindness as a result of diseases such as trachoma, an infectious eye disorder,” wrote the researchers. “In addition, almost 5 million people suffer total blindness due to corneal scarring caused by burns, lacerations, abrasion or disease.”

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Scientists discover new human body part

Dua’s layer, a new layer of the human cornea.

A new discovery to the human anatomy is just 15 microns thick, but it will make eye surgery safer and simpler. Harminder Dua, a professor at the University of Nottingham, recently found a new layer in the human cornea, and he’s calling it Dua’s layer.

 

 

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Subretinal Implant Successfully Tested On Humans, Makes Blind Narrowly See

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How many scientists does it take to properly install a lightbulb? When that lightbulb is an implant that stimulates retinal photoreceptors to restore one’s sight, quite a few — even if they disagree whether said implant should be placed on top of the retina (requiring glasses to supply power and video feed) or underneath, using photocells to channel natural sunlight. Now, a German firm dubbed Retina Implant has scored a big win for the subretinal solution with a three-millimeter, 1,500 pixel microchip that gives patients a 12 degree field of view…
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Vision-Restoring Surgery That Used Patient’s Tooth Performed In U.S.

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Sharron Kay Thornton talks with her lead surgeon Victor Perez who restored sight to her left eye.

Doctors in Miami announced Wednesday that they had performed a vision-restoring surgery that used the 60-year-old patient’s tooth.The surgery, the first in the USA, was performed Labor Day weekend at the Bascom Palmer Eye Institute at the University of Miami Miller School of Medicine. Afterward, patient Sharron Thornton was able to see for the first time in nine years. “Sharron was able to see 20/60 this morning. She was seeing only shadows a couple of weeks ago,” says ophthalmologist and surgeon Victor Perez.

 

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Artificial Corneas

Artificial Corneas 

 Artificial Cornea

Researchers at Stanford University may have just gotten us one step closer to creating a cyborg. They’ve developed a new kind of artificial cornea, one that’s “showing promise” in animal studies and could eliminate the need for cornea transplants completely.

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