This is tensor imaging.

MRI stands for Magnetic Resonance Imaging, whereas CT stands for Computed Tomography.

This is a degeneration of the retina.

Whole animal imaging (referred to as in vivo or, occasionally, ex vivo imaging) is a powerful technique for studying cell populations in live animals, such as mice.

Stage 5 is total retinal detachment.

This is the main method that I use. This is called functional MRI.

This is the main method that I use.

I have permanent retinal damage

And so the encoder does just what I was saying it mimics the actions of the front end circuitry so it takes images in and converts them into the retina's code.

So what it's doing is, it's replacing the retinal circuitry, really the guts of the retinal circuitry, with a set of equations, a set of equations that we can implement on a chip.

One MRI scan costs 10 times what a digital mammogram costs.

So from the retina you go onto visual cortex.

We've just abstracted what the retina's doing with a set of equations.

I had retinal detachment five years ago.

In other words, we're not literally replacing the components of the retina.

So what it's doing is, it's replacing the retinal circuitry, really the guts of the retinal circuitry, with a set of equations, a set of equations that we can implement on a chip. So it's just math.

Optical tomography is used mostly as a form of research in medical imaging.

There are also several neuroprosthetic devices that aim to restore vision, including retinal implants.

51 Days Developing retina, nose and fingers

And MRI is exquisitely sensitive for finding tumors, but it's also very expensive.

Optical tomography found its application in industry as a sensor of thickness and internal structure of semiconductors.

You know all about imaging, right, ultrasound imaging.

In retinal separation, the retina detaches from the back of the eyeball.

But that means that retinas in your eyes are not catching the light, either.

Stem cell derived retinal transplants, now in a research phase, may one day restore vision, or part vision, to millions of patients with retinal diseases worldwide.

So anyway, we found activity in three brain regions.

And MRI is exquisitely sensitive for finding tumors, but it's also very expensive.

The optic nerve is composed of retinal ganglion cell axons and glial cells.

So anyway, we found activity in three brain regions.

In 2006, the Swede struggled through the season after suffering an eye injury early in the season.

He sees with a combination of the retina, the brain, the eyes, and light and many other factors which I needn't go into.

On the positive side, we now have sunscreen for your retinas.

And the other thing is they're working on artificial retinas for the blind.

This experience taught me to empathize more with my patients, and especially those with retinal diseases.

This mechanism is used, for example, with rhodopsin in retina cells to compensate for exposure to bright light.

About 10 of all retinal ganglion cells are parasol cells, and these cells are part of the magnocellular pathway.

The temporal hem retina, on the other hand, stays on the same side.

Carmen Puliafito, who developed a laser scanner of the retina, I found out the the following.

So what happens when a person gets a retinal degenerative disease like macular degeneration?

Here you're going to see the very highest resolution MRI scan done today, reconstructed of Marc Hodosh, the curator of TEDMED.

A CT scan of the cranium more accurately determined her age to be about 40 years old at the time of her death.

This is another example of patient specific stem cells that were engineered from someone with retinitis pigmentosa. This is a degeneration of the retina.

Then, the retinas in your eyes catch the light reflection for your brain to interpret into the image of an apple.

The instant you stepped outside, specialized receptors in your retina in the back of the eye would kick off an avalanche of neurological activity.

Here you're going to see the very highest resolution MRI scan done today, reconstructed of Marc Hodosh, the curator of TEDMED.