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New Technologies to Improve Vision | Susana Marcos | TEDxSaintLouisUniversityMadrid


[Applause]

well I’m a vision scientist and what I

do is I investigate how the eye works

and I develop technologies provision

well scientists without Sciences is the

aspiration and if you felt waste get the

answer and I’m pretty sure that every

one of you have an inner scientist

that’s question I’m probably you ask

many questions

you got the Stars mystery night right

like a question how many stars are they

right they are why they are and we see

better

astronomers have figure out ways they

have they have a fella like telescope

and they have a couple this telescope

adaptive oh that active object they

protect a laser beam through the apples

and then they measure the degrading

effects of the atmospheric turbulence

Peter starts better I investigate the

eye and the eye is probably the most

amazing optical instrument that it can

imagine in fact what we do we translate

move forward these technologies that

have been developed for astronomy to the

investigation of the eye yeah as I said

is composed Islands past hernia and the

crystalline limbs and those lenses

predict the images of the outside world

on the retina where the photoreceptors

capture the light and convert that into

electrical signals that travel all the

way to the brain but the eye as

fascinating as it is it’s not perfect

the images that are predicted by the

lenses get brewery and and they’re not

not absolutely perfect but we can

measure these imperfections and in fact

we were using his technology

for astronomy this Parma shock wave

sensor and translated that into the eye

and we do something similar with

astronomers dead telescopes nine array

of light to the back of the eye and we

analyzed the wave of light that emerges

through the eye and measure this

imperfection the most well-known

imperfections in the IR refractive

errors in a perfect die in an electric

eye images are projected on the retina

however in for example at myopic eye a

nearsighted eye the images are projected

in front of the retina and we need

glasses

we need spectacles to bring that image

to the regular plane spectacles have

been used for centuries this is a

painting by Rico with his Cardinal

wearing glasses and celebrities wear

glasses as well in fact lots of people

in the world wear glasses myopia affects

30% of the population in Western

countries and actually more than 90% in

some areas in the world like Hong Kong

or Singapore but in fact there are many

people blind in the world because of the

lack of our Corrections there we shall

improve menu – uncorrected refractive

errors that well hearth organisation has

measured estimated to be about 153

million blind people because of the lack

of a correction why this happens well

what we can say is that we can actually

improve quality of light by a lot by

putting someone’s glasses and eyeglasses

are not the bottle a my glasses can be

as cheap as four dollars it’s probably

the one cost effective health pro

technology however the reason why there

are so many people and correct it is

because of the lack of specialists Comet

wrists are not as many as they should be

in the US or in Europe there is one of

comet wrists every six thousand people

however you go to real India there is

one of comma trees every 250,000 people

even less in in Africa so when the iCard

special is coming this path

probably once a year there are these

long lines to the form yes to get the

prescription because

you need an apologist that puts lenses

and measure prescriptions for for some

time or you need expensive technology so

there is a recognized need for getting

these technologies that are affordable

and are accurate you get the

prescription without the need of a

specialists and this is what we did in

our lab we brought these technologies

these big technologies sitting on the

table with lasers lenses inches

something very small something

affordable that at the click of the

bottom can get you a prescription so

bringing accurate photo refraction

anywhere this is an example of a

subpoena company that was formed between

MIT and CSI see in in Madrid and what is

more important is that these

technologies now be brought to the

patients and the people in need is now

being used in that in India to get these

prescriptions and and get these peoples

glasses we explore the eye very much as

astronomers explore planets the

astronomers quantify the topography for

example of planets this is a an image by

NASA exploring the planet Mercury well

we explore the topography of these

lenses in the I like the cornea the

shapes of the crystalline lenses and

develop these technologies that allow us

for example to guide Patrick surgery we

can implant an intraocular lens and with

these are quantitative technologies we

can select the intraocular lens that is

best adapted to the anatomy of an eye

so we saw these technologies used as

astronomers that allows to measure the

imperfections and the relation imposed

by the atmosphere

well astronomers have developed this

instrumentation to actually correct the

aberrations the imperfections of the

atmospheric turbulence we are using the

same technology to correct the

aberrations of the eye for example

moving from these big systems into

something very small something that can

be worried in the eye to simulate a

particular correction so those

instruments that look forward from

astronomy to optical instruments in the

lab can now be worn by a patient they

can actually see the world through a

correction that is going to be implanted

in their eye even than the experience of

a correction before actually having a

surgery

and again this is another example of

technology being moved forward from

astronomy to the lab and now to the

clinic and this is a spin-off company

that was created in my lab two years ago

to bring this technology to the patients

we not only get inspiration from

astronomy we also get inspiration from

nature for example we look at some

animal eyes like geckos to get inspired

to create multifocal Corrections

it’s our Corrections that protect you

simultaneous image an image that is

focused for fire and near at the same

time to create for your press my opium

eventually these designs can be get into

a patient’s eye but we also get

inspiration from the crystal lens the

crystalline lens of a young eye has the

ability to accommodate to focus near and

far and this is the technology that we

have used and developed to image these

are accommodating crystalline lens we

can look at the structure of the

crystalline lens and get a lot of

information that is useful to create new

lenses to get inspired to get new

Corrections this will be the future of

our Corrections for presbyopia right now

Corrections of pres bio parent static

one the dynamic correction for near and

far we are getting inspired by the

accommodating nature of the crystalline

lens design these lenses they get

reshaped upon an accommodationist errors

so I hope next time you see the start

you can imagine how we can use light and

optics to improve vision and how these

technologies that once started in

astronomy are now moving forward to

increase eye care access to patients in

need to provide them with glasses and

they’re now being used to improve

cataract surgery surgery that is

performed 22 million surgeries per year

or actually restore visual function so I

hope you can imagine how we can use

light to see the light thank you for

your attention [Applause]

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