Apparatus for treating an eye with laser radiation, comprising: a) a laser radiation source which is configured to produce laser radiation , b) means which are configured to direct the laser radiation onto the eye for the purposes of an ophthalmological intervention on or in the eye, b1) an applicator that can be made to engage with the eye for the purposes of alignment of the aforementioned means for directing the laser radiation onto the eye, c) a controller which is configured to control the laser radiation in space and time in relation to the eye according to a treatment program , d) a camera which is configured to record the applicator and at least one feature of the eye , e) an image processing unit which is configured to derive information about the eye from the camera recording and enter this information into the controller, as result of which f) the controller is configured to control the laser radiation according to the treatment program and depending on the information derived in step (e), g) wherein the image processing unit is configured: - to derive information about the centre (Z) of the eye from the camera recording and - to derive a spatial relationship between the applicator and the feature of the eye from the camera recording and to transmit a signal corresponding to this relationship to the controller , and h) wherein the controller is configured to control the laser radiation according to the treatment program and depending on the information about the centre (Z) of the eye derived in step (g) and depending on the signal corresponding to the relationship. a) a laser radiation source which is configured to produce laser radiation , b) means which are configured to direct the laser radiation onto the eye for the purposes of an ophthalmological intervention on or in the eye, b1) an applicator that can be made to engage with the eye for the purposes of alignment of the aforementioned means for directing the laser radiation onto the eye, c) a controller which is configured to control the laser radiation in space and time in relation to the eye according to a treatment program , d) a camera which is configured to record the applicator and at least one feature of the eye , e) an image processing unit which is configured to derive information about the eye from the camera recording and enter this information into the controller, as result of which f) the controller is configured to control the laser radiation according to the treatment program and depending on the information derived in step (e), g) wherein the image processing unit is configured: - to derive information about the centre (Z) of the eye from the camera recording and - to derive a spatial relationship between the applicator and the feature of the eye from the camera recording and to transmit a signal corresponding to this relationship to the controller , and - to derive information about the centre (Z) of the eye from the camera recording and - to derive a spatial relationship between the applicator and the feature of the eye from the camera recording and to transmit a signal corresponding to this relationship to the controller , and h) wherein the controller is configured to control the laser radiation according to the treatment program and depending on the information about the centre (Z) of the eye derived in step (g) and depending on the signal corresponding to the relationship. <EOS>