Tag: "brightness" at medical news

Many Hours on Computer may Harm Eyes

... in keeping your focus relaxed," Beebe said. The brightness of the monitor should be adjusted to an intensity comfortable to the eyes. That means not too bright or too dim. Next, you should adjust the contrast between the characters on the monitor and the background so the letters are easily read, the experts...

Many Hours on Computer may Harm Eyes

... in keeping your focus relaxed," Beebe said. The brightness of the monitor should be adjusted to an intensity comfortable to the eyes. That means not too bright or too dim. Next, you should adjust the contrast between the characters on the monitor and the background so the letters are easily read, the experts...

New Screening Process Helps Better Diagnose Oral Cancers

... 84 patients studied, Vizilite improved either the brightness or sharpness of the identified lesions by 61 percent. Only biopsing lesions which retained the toluidine blue stain reduced the false positive rate by nearly 59 percent while maintaining zero false negatives. Source-Eurekalert...

Researchers Uncover Critical Player in Cell Communication

.... A camera attached to the microscope recorded the brightness of the glow and fed that measure into a computer that calculates the amount of calcium. Knocking down TFII-I and separately assaulting the cells with chemicals caused the cells to take up more calcium than usual. The researchers realized that whe...

Changes in Solar Brightness Too Weak to Explain Global Warming

Changes in the Sun's brightness over the past millennium have had only a small eff...complicated by a third possibility: that the Sun's brightness could have increased. The new review in Nature examines the factors observed by astronomers that r...

Not Blinking Enough In Front Of The Computer Can Cause Dry Eye

... focus. In addition, it also reduces the glare and brightness under such circumstances. Blinking rewets the eyes and, offers protection to the eye, especially if the work is visually demanding. Reductions in the frequency of blinking can eventually lead to eyestrain, precipitating dry eye....

1