Contact lenses 'versatile'

Contact lenses are not just vision correction lenses, but they can also cure eye diseases in the future, according to US scientists.

By using antibiotic-grade silver nanoparticles for contact lenses, researchers from the University of California, Berkeley may monitor the pressure inside the eye (eye pressure) The drug directly into the eyes and do not hurt.

This new glass promises to help treat diseases such as glaucoma and can save millions of people from the dark.

Variable pressure in the eye is a sign that the appearance of glaucoma. This change happens continuously, maybe day to day, even from minute to minute. However, doctors can only measure pressure in the eye at intervals of several months (depending on the patient), which makes it difficult to control the course of the disease.

New technology from the University of California is expected to help early diagnosis of diseases such as glaucoma, as well as better treatment of eye disorders.

Contact lenses made by polydimethylsiloxane (PDMS) University of California researchers, which have the same shape as the contact lens commonly seen on the market, include a mesh of 64 pressure points made up of 8x8 nanofibers the silver. Each of these points independently monitors the pressure in the eye, then passes this information to the computer. In the future, these glasses may have hundreds of pressure gauges made of invisible silver nanowires.

In addition, doctors can insert a contact lens that reduces the pressure inside the eye, helping to monitor the treatment of this drug.