Definitions for "Astigmatism"
A defect of the eye or of a lens, in consequence of which the rays derived from one point are not brought to a single focal point, thus causing imperfect images or indistinctness of vision.
An aberration in a lens in which the tangential and sagittal (horizontal and vertical) lines are focused at two different points along the optical axis.
Optical abberation or imperfection that renders stars as crosses instead of points. Difficult to correct.
Keywords:  postoperative, incision
Incision Postoperative
Hypertension Presbyopia Pulse