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Gregoire Cosendai by Mind Map: Gregoire Cosendai
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Gregoire Cosendai

Gregoire Cosendai, Electrical Engineer from Swiss Federal Institute of Technology, Lausanne, PhD on artificial hearing with electrical stimulation of the auditory nerve. 15 years of experience in neurostimulation in hearing, musculoskeletal and vision. Currently European director for Second Sight Medical Products, who is launching the first retinal implant to restore vision to the blind.

TEDx Vienna


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Hopes of restoring vision to the blind

It's a lot of hard work

on both sides, Doctor, Patient

The Eye

One of our most advanced senses

The Iris, The conjuntive, The Pupil, Lens, Retina, About the size of 5 hairs, cones and rods, Cones, colors, Rods, Fine detail and darkness

50% of all the cells in an eye are located in the Macula

45 Million blind people in the world

Most adapt very well

people don't need help to help them do things, they need help to help them do things easier

When we find ways to help blind people, we help everyone

The largest cause of blindness is cataracts

Macular degeneration



Diabetic Retinopathy

Retinitis Pigmentosa, Currently no cure, Cells degenerate, Hereditary condition

How does Blindness progress with RP?

Night vision loss by age 20

Peripheral vision is gone by 30

Legal Blindness by age 40

How to treat RP?

Repair Genes

Slow the disease

Regenerate Photo receptors

Make other cells perceive light

Bypass Retina

Light comes into retina, signal goes to the brain

cones and rods no longer work, zap them with electrical current?

Patient wears a camera on their glasses, signal talks to implant in the eye via radio, cells on the surface of the retina are then activated

Most successful patients can fully read, 10 %

Shape recognition

locate objects

detect motion

To date: 30 people have received implant

11 centers around the world

there's always risk involved

What Now?

Treatment for the most sever patients

The treatment is just a start

Hope for all people with RP

Is going to be a revolution

Please take care of your eyes!!!