1 What the â witness said in court was not â consistent with the â statement he made to the â police. 2  The â members of the â jury â left the court with a â police â escort. 3  He â arrived in court â handcuffed to two â police â officers.
optic axis. 1. a line connecting the center of the anterior curvature of the cornea (anterior pole) with that of the posterior curvature of the sclera (posterior pole). 2. the hypothetical straight line passing through the centers of curvature of the front and back surfaces of a simple lens.
This describes the lens meridian that contains no cylinder power to correct astigmatism. The axis is defined with a number from 1 to 180. The number 90 corresponds to the vertical meridian of the eye, and the number 180 corresponds to the horizontal meridian. If an eyeglass prescription includes cylinder power, it also must include an axis value, which follows the cyl power and is preceded by an x when written freehand. The axis is the lens meridian that is 90 degrees away from the meridian that contains the cylinder power.