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Painless eye examinations made possible with a soft contact lens


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Electroretinography is a common technique for diagnosing and following up on eye conditions.

Commercial electroretinography devices are rigid and require electrodes, often in the form of a hard contact lens.

Often requires general anesthesia or sedation, in addition to topical anesthesia.

Researchers unveiled a soft contact lens that is easy on the eye, provides superior electroretinography signal recordings.

“Beneficial to painless diagnosis or early detection of many ocular diseases,” -Chi Hwan Lee, the lead scientist.

Flexible electronics and a new way to print the sensor components, using wet adhesive bonding onto a soft contact lens.

Other types of sensors should be able to be attached to contact lenses to provide additional capabilities.

“Spontaneous retinal activity with improved accuracy, reliability and user comfort,” - Pete Kollbaum, co-researcher.

Study by Purdue University published in Nature Communications.

Stretchable, printed soft lens for early and accurate detection of eye diseases

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Assistant Professor of Biomedical & Mechanical Engineering at Purdue University


Journal covering all topics in physics, chemistry, and biology.


Associate Professor at the Indiana University School of Optometry


Public research university and the flagship campus of the Purdue University system