Intraocular lens alignment

摘要

A method for generating a radial alignment guide for an eye includes collecting preoperative alignment data relative to a pupil from an eye that is not dilated. The method also includes locating a pupil center of the eye while dilated. The method further includes displaying the alignment data on an image of the dilated eye relative to the pupil center. In particular embodiments, software embodied in a computer-readable medium is executable by a processor to perform the steps of such a method.

主权项

1. A method for generating a radial alignment guide for an eye, comprising:
collecting preoperative rotational alignment data relative to a pupil from an eye that is not dilated, the preoperative rotational alignment data comprising a rotational offset relative to a meridian of the eye; locating a pupil center of the eye while dilated during implantation of a toric intraocular lens; displaying a radial grid on an intraoperative image of the dilated eye, the radial grid comprising a vertical axis and a horizontal axis each passing through the located pupil center; and displaying a rotational alignment axis for the toric intraocular lens, during the implantation of the toric intraocular lens, on the intraoperative image of the dilated eye, the rotational alignment axis being offset relative to one of the vertical axis and the horizontal axis by an amount equal to the rotational offset of the preoperative rotational alignment data.