CENTERING TECHNIQUE FOR A CUTTING LASER FOR REFRACTIVE OPHTHALMIC SURGERY

摘要

According to certain embodiments, a method for laser cutting treatment of a human eye comprises: determining position information of a pupil center of the eye in relation to a point of minimal corneal thickness in an undeformed state of the eye; locating the point of minimal corneal thickness in a flattened state of the eye, in which the eye is deformed by contact with a patient adapter of a laser device; and aligning a pulse firing pattern for laser radiation pulses of the laser device, based on a position of the located point of minimal corneal thickness and the determined position information. In embodiments, the pulse firing pattern represents, for example, a lenticular or doughnut-shaped intracorneal tissue volume which is to be removed from the cornea of the eye.

主权项

1. Method for laser cutting treatment of a human eye, comprising:
determining position information of a reference feature of the eye in relation to a given corneal point in an undeformed state of the eye; locating the given corneal point in a deformed state of the eye; and aligning a pulse firing pattern for laser radiation pulses of a laser device, based on a position of the located given corneal point in a coordinate system of the laser device and the determined position information.