circle of least confusion


Also found in: Medical, Acronyms.

circle of least confusion

[′sər·kəl əv ′lēst kən′fyü·zhən]
References in periodicals archive ?
For rotation, the scalar power component is zero so that the residual is a cross-cylinder lens that does not influence the position of the circle of least confusion. In existing work [3], bending along principal meridians as an eigenvalue modification was not considered; only fresh angles were adopted by the meridians of a compensation lens.
If such a cylinder were added to a prescription, one would need to change the sphere so that, in effect, a cross-cylinder lens is added to keep the circle of least confusion on the retina.
In this example, the rotation in meridian gives rise to a residual cross-cylinder power of magnitude 0.35/2 D that would not influence the position of the circle of least confusion on the retina.