Diabetics may soon be able to wear contact lenses that continuously alert them to variations in their glucose levels by changing colours – replacing the need to routinely draw blood throughout the day. The non-invasive technology, developed by The University of Western Ontario, uses extremely small nanoparticles embedded into the hydrogel lenses. These engineered nanoparticles react with glucose molecules found in tears, causing a chemical reaction that changes their colour.

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One-month-old babies with serious eye conditions are being prescribed contact lenses. Infants are given contact lenses if they have cataract surgery, need extremely high-strength prescription glasses, or have very different prescriptions for the two eyes. The Kenya Union of the Blind is working in conjunction with Computer Aid International, to supply visually-impaired Kenyan schoolchildren with technological aid in the classroom.

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Johnson and Johnson has highlighted the results of a recent study into the use of contact lenses. The report found that using contact lenses for longer than prescribed can lead to extreme wear. This stretching of the lens could result in undesirable clinical effects. Overall, 36 per cent of lens wearers prescribed for monthly replacement said that they replaced their lenses as advised, but 55 per cent replaced them at five weeks.

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CIBA Vision, the eye care unit of Novartis, has announced a final global patent litigation settlement agreement with CooperVision, Inc. The agreement resolves all current patent infringement lawsuits between the two companies. CIBA Vision has licensed its Nicolson patents to CooperVision, while the latter company will pay the former a royalty on U.S. net sales of its Biofinity contact lenses until 2014 and on net sales outside the U.S. until 2016.