Clinician definition, a physician or other qualified person who is involved in the treatment and observation of living patients, as distinguished from one engaged in research. See more. Dictionary.com
In geometry, the foci (/ËfoÊsaÉª/ ; singular focus) are a pair of special points with reference to which any of a variety of curves is constructed. For example, foci can be used in defining conic sections, the four types of which are the circle, ellipse, parabola, and hyperbola. In addition, foci are used to define the Cassini oval and the Cartesian oval.
Central vision is the 3% cone at the center of your focus, forward focusing. This is what you see immediately in front of you, usually sharply focused. You also have distance vision, depth perception, peripheral vision, color vision, night vision, glare vision, and visual acuity. These area all involved in driving.