Apparatus for ophthalmic laser surgery

摘要

An apparatus for ophthalmic laser surgery includes a contact surface for shaping abutment of an eye to be treated, a first radiation-source for making a treatment laser beam available, optical components for directing the treatment laser beam through the contact surface onto the eye, and also a measuring instrument for measuring the depth of the anterior chamber of the eye bearing against the contact surface, whereby the measuring instrument makes measured data available that are representative of the depth of the anterior chamber of the eye at least one point of the same. The apparatus enables a monitoring of the depth of the anterior chamber for a predetermined limiting value being fallen short of and in this way can prevent a dangerous close approach of the posterior surface of the cornea to the anterior surface of the lens when the eye is pressed against the contact surface.

主权项

1. Apparatus for ophthalmic laser surgery, including a contact surface configured to shape abutment of an eye and to be placed in contact with the eye by an underpressure,
a first radiation-source configured to provide a treatment laser beam, optical components configured to direct the treatment laser beam through the contact surface onto the eye, a measuring device configured to:
measure the depth of the anterior chamber of the eye bearing against the contact surface at a plurality of points distributed in a plurality of concentric circles on the eye, andprovide measured data that are representative of the depth of the anterior chamber of the eye at the points of the eye, and an evaluating and control arrangement configured to:
determine whether the measured data falls short of a predetermined value; andinterrupt the supply of the underpressure if the measured data falls short of the predetermined value.