A telephoto contact lens that can switch between equal magnification and 2.8 times by blinking appears

While developing the zoomable "telephoto contact lens" like a telephoto lens, a prototype of the latest model which can perform switching operation between equal magnification and high magnification by blinking has been released.

See here now: Telescopic contact lenses and wink-control glasses - ScienceDaily
http://www.sciencedaily.com/releases/2015/02/150213145049.htm


This was done in San Jose, CaliforniaAmerican Association for the Advancement of Science (AAAS)In the annual conference of the Swiss Federal Institute of Technology Lausanne (EPFL) Eric Tremblay announced. Mr. Tremblay and Mr. Joe Ford of University of California San Diego and others are developing the "telephoto contact lens" and in 2013 he was announcing "telephoto contact lens that can switch between normal magnification and telephoto" It was.

Optics InfoBase: Optics Express - Switchable telescopic contact lens
http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-21-13-15980&id=258366


For the contact lenses announced by Mr. Ford and others in 2013, the light passing through the center part looks like equal magnification as it is and the light passing through the periphery part is magnified 2.8 times. When wearing a lens as it is, the image seen at equal magnification and the image seen at 2.8 times will overlap, so we apply polarized glasses and let the light pass through either the equal part or the 2.8 times part.

The project received financial support from the US Defense Advanced Research Projects Agency (DARPA), has been developing comfortable lenses that can be used even in everyday life even if you continue to wear for a long time. Especially for the last couple of years time was spent solving the challenge of how to solve the oxygen supply required by the eye when wearing contact lenses. As a result, we created a wind tunnel with a width of only 0.1 mm inside the lens so that oxygen reaches the cornea.

The point that the announced prototype greatly differs from the model announced in 2013 is that the function to recognize the blink is installed. As mentioned above, in order to see the images of equal magnification and 2.8 times without overlapping, it is necessary to let light pass through only one part of the lens. However, with this improvement, for example, when blinking with only the right eye When it blinked in the 2.8 times mode with only the left eye, it became possible to switch electronically to the equal magnification mode.

People with amblyopia and age-related macular degeneration (AMD) can benefit from completing this contact lens. Currently it corresponds to driving and other work such as attaching a device called "Bioptic Telescopes" on glasses, but because it is understood by seeing that "I wear something strange glasses" It is said that some people refuse to put on.

Bioptic Telescopes Meet the Needs of Drivers with Moderate Visual Acuity Loss


If it is a contact lens it is difficult to understand what you are wearing, so it will be an item to solve many people 's troubles if completed.