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Scientific American Frontiers
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Every Sound a PresentSecond Sight

How the Ear Works
Learn all about our specialized hearing organ, the ear. Information on anatomy, the physics of sound, and how the brain understands what it is hearing.

Cochlear Implants

This site from the National Institute on Deafness and Other Communication Disorders explains the basics of what cochlear implants are and how they work. There's also a list of resources for those who want more information.

Do Cochlear Implants Work in Children?
This editorial from the British Medical Journal answers that question in the affirmative. The page links to a number of scientific papers on the topic.

Hearing Loss Simulation

Find out what the world sounds like if you have mild or moderate hearing loss. This web site simulates how you would hear speech and sounds from the environment with different amounts of deficit.

Retinitis Pigmentosa
Learn more about this inherited eye disease that causes the degeneration of light sensitive cells within the retina.

Artificial Retina Project
The Department of Energy's Advanced Biomedical Technology Research is working to restore sight in blind patients. Check out information on the labs and universities that are collaborating on the project and see how far they've gotten so far.

Retinal Implants
This sitee explains the basics of how an implant can help restore vision.

This page from the University of Southern California provides a diagram of the retinal prosthesis.

Second Sight
The retinal implant received by the patient in "Cybersenses" was manufactured by this company.

The Boston Retinal Implant Project
Other medical teams are working on slightly different types of retinal implants. This site explains one approach.

This company is working on their own version of an artificial retina. Their web site provides information on the eye, retinal diseases, and their chip implant.


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