Microrobots sense retinal oxygen levels

http://www.ethlife.ethz.ch/archive_articles/130506_SauerstoffMikroroboter_aj/index_EN

Professor Bradley Nelson and researchers at ETH Zurich have created a miniature robot that can be injected into the eye to precisely measure the retina’s oxygen supply.  Many diseases, including Glaucoma, can interfere with oxygen delivery to the retina.  Rapid diagnosis and treatment is essential in the attempt to preserve vision.

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