The incidence of contrast-induced acute kidney injury (CIAKI) is disputed, but clinically relevant CIAKI is less frequent than previously assumed Individual patient risk factors determine the ...

Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

In its simplest terms contrast is how the brightness of an object compares (or contrasts) to the brightness of its background. Think of a white circle against a black background and you get the ...

Depending on your tolerance for extreme temperatures, immersing your body first in hot water and then in an icy cold bath may sound either invigorating or torturous. Contrast hydrotherapy involves ...