CO2 study could change contact lens development"

CO2 study could change contact lens development"

The development of contact lenses could be altered as a result of new research into the impregnation of CO2 to customise plastics.

Experts at the Fraunhofer Institute for Environmental, Safety and Energy Technology in Overhausen are currently testing how CO2 can be used to impregnate plastics and lead to new ways of creating coloured contact lenses.

According to Menfred Renner, a scientist at the facility, the process involves pumping liquid carbon dioxide into a high-pressure container along with the plastic components that are to be impregnated, and the temperature is then steadily increased along with the pressure until the gas reaches a "supercritical" state.

He explained that the technique could be used for dyeing contact lenses or enriching them with compounds which could slowly be released to the eye and provide an alternative to eye drops for glaucoma.

Meanwhile, a new procedure has been developed by a team led by Dr Eniko Enikov at the University of Arizona College of Engineering which they claim may lead to more accurate and earlier detection of glaucoma.

by Alexa Kaczka

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