How to protect the vision in the work

The visual problems that accompany to the intensive use of the computers, affect many people. The work makes that we fix our look in the screen of the computer during a long time period every day, what tire too much the view.

The immediate consequence is that the eyes begin to dry off, the view you blurred restitution, we suffer headaches and neck, and we are overworked in an immediate way.

When happening ésto, we make an effort in seeing in an excellent way to as we came him making, and for it, we begin to use other muscles of muscles like for example those of the forehead nape and shoulders, causing pressures and subsequently contractures.

For all ésto it is recommended to make a series of small spans amid the labor task, and this way to be able to release the musculature of the eyes of the excesses of pressure, already ea frequently closing them, or covering them with the hands.

Next, we offer you some advice so that you protect your view in front of the screen of the computer.

- You use a glass filter or of plastic of high quality in the computer, to avoid the reflections of the light. Evita those filters carried out with cloth or network.

- You use a lectern to sustain documents or books. Locate it near the screen.

- You locate the screen below about 20 more grades of the level of the eyes.

- The screen should be at a distance from 40 to 75 cm of your eyes.

- Evita the very brilliant light above your head, especially if you are fluorescent.

- You take your look of the screen from 5 to 10 seconds, every 10 minutes.

- The monitors with darker letters on more luminous bottom are much easier of reading.

- The screens of can resolution reduce the visual pressure.

- You darken the room shutdowning some lights or covering the windows with a screen. You locate your work place in right angle with the window that this is not neither you face neither behind the computer.

- You consult with your oculist if you beneficiary to use special glasses for the computer, stiller if you use bifocal.

- Get used to blink followed and regularly.

Artificial retina will allow to see to blind

Recently he commented the development of a bionic contact len that allowed to raise the vision of the focused objects. Now, we meet with a more interesting notice, a team of Japanese scientists of the University of Osaka and the Institute Nara of Science and technology they have developed a system of artificial vision that make arrive visual signals to the brain, what would allow to undelete the mediating vision this blind technical people.

The device consists on some glasses of sun that take incorporate some chambers of filming of images and in some electrodes that are implanted in the eye with a not very invasive surgery. Each electrode has a similar resolution to that of a píxel of digital image, and the scientists hope to end up implanting up to 100 electrodes in some years, what would suppose that a blind man could distinguish objects with articulation to 30 centimeters of distance.

Also, the system includes the implant in the eye of a game of electrodes of four square millimeters that you/they boost the optical ledge. Once the signals reach the brain, the patient can see again. The quality of the vision procured by the system depends on the number of electrodes that you/they are implanted in the eye, so that we make ourselves an idea, each one of these electrodes is comparable with a píxel of the digital picture. The implanted electrodes are floppy thanks to the use of chips of integrated circuits.

The idea of the investigators is that your invention you can market in 2012, for the moment, this year, the plans are to implant, with surgery, 49 electrodes of the third generation of the system in the eye of a patient, with the objective of improving the effectiveness of the device so that you allow to see something more than you shine.