Artificial Retina Implantation Using MEMS

By, Chaithra D 1MS15LEC07

Contents Working of Eye

Need of artificial retina

Approches To Cure Retinal Disease

Epiretinal Implant Using MEMS

Microfabrication of Microelectrodes

Conclusion

Refferences

Fig 1. Human Eye

Human Eye

Why Artificial Retina…? Types of Retinal Diseases:

Retinitis Pigmentosa (RP)

Age related Macular Degeneration (AMD)

Approaches To Cure Retinal Diseases

The Epiretinal approach stimulates the ganglion.

The Subretinal approach replaces photoreceptors by

photodiodes.

Fig 2. Epiretinal Approach

Epiretinal Microimplant

Fig 3.Epiretinal System

Components of ERI

Fig 4. Componets Involved In The Epiretinal Impantation

Contd…

Fig 7. The ERI Showing the 25 Stimulation Electrodes at the end of the Microcable

Microfabrication The most important point in epiretinal implant is the

microfabrication of polyimide film:

Fig 6.1. Microfabrication of flexible 15 μm thin polyimide film.

Contd…

Fig 6.1. Microfabrication of flexible 15 μm thin polyimide film.

Conclusion

MEMS technology plays an important role in curing the

retinal diseases.

Long-term biocompatibility.

References Sergey Yurish, “Sensors and Bio-Sensors, MEMS technology and

its application”, text book.

www..scme--nm..orrg.

Kolnsberg.s, Kneip.T, Huppertz.J, Haushild.R, Schwarz.M,

Hammershmidt.D, Hosticka.B.J, Ewe.L and Trieu,H.K,

“Microelectronic Components for a Retina Implant System”.218-

221,2010. 25th European Solid-State Circuits Conference

(ESSCIRC).

THANK YOU

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