Chromatic aberration is used during a duochrome eye test to ensure that a correct lens power has been selected.

Heading north towards Blönduós, back on Route 1, I watched the scenery settle into a durable pattern: plucky sheep and red-roofed farmhouses marooned in a treeless, duochrome realm of grass-tufted lava and steep rock, thin waterfalls hurling themselves off mossy cliffs, a wandering thread of empty tarmac.

The more correct duochrome or two-one are still too vague.

A concert album from this tour, entitled Duochrome, was released in September 2008.

Broken Atlantic, Duochrome and Sonny Sixkiller, rock.

The red-green duochrome test is performed monocularly, and is used to refine the spherical component of the refraction.

A Duochrome Test is a test commonly used to refine the final sphere in refraction, which makes use of the chromatic aberration of the eye.

Mica particles, also called pearls, come in an array of colors, either single or duochrome, which means that they project two colors at once, like red and gold, or blue and white.