Abstract: The present invention comprises a closed loop system and method for assessing a performance of a refractive surgical system that is capable of correcting lower and higher order aberrations of the eye. In one embodiment, the refractor surgical system comprises a corneal re-shaping laser system and a refractor system that is capable of measuring low and higher order aberrations of the eye. A software application is capable of transforming the measurements of the refractor system to a treatment plan to control and guide the corneal re-shaping laser system. The systems and methods of the present invention may include a lens that is created by the corneal reshaping laser system and can be measured by the refractor system.

Abstract: A wavefront sensor enhances calibration of a laser ablation system, such as a laser eye surgery system, by measuring one or more characteristics of an ablated test surface. Typically, light is passed through the ablated test surface, and the light is analyzed to determine the test surface characteristics. In some embodiments, the ablated test surface is positioned along a treatment plane. In some embodiments, light is passed through a wavefront sensor, such as a Hartmann-Shack sensor, to convert the light into electrical signals. A processor then converts the electrical signals into data, such as surface maps showing high-order aberrations and/or artifacts on the test surface, refractive power measurements, shape measurements, and the like. Generated data may then be used to calibrate a laser surgery system.

Abstract: Apparatus and methods can determine positional and rotational offsets between a first and second imaging device. Embodiments may determine the relative offsets between a Hartmann-Shack wavefront sensor and a pupil camera using a calibration apparatus having a rotationally asymmetric aperture. The image obtained by the Hartmann-Shack wavefront sensor way comprise a spot pattern that corresponds to a shape of the aperture. A marker may be superimposed over the images, with a shape of the marker substantially corresponding to the shape of the aperture, and movements of the marker from nominal positions on each image can be compared to determine the offsets.

Abstract: A wavefront sensor enhances calibration of a laser ablation system, such as a laser eye surgery system, by measuring one or more characteristics of an ablated test surface. Typically, light is passed through the ablated test surface, and the light is analyzed to determine the test surface characteristics. In some embodiments, the ablated test surface is positioned along a treatment plane. In some embodiments, light is passed through a wavefront sensor, such as a Hartmann-Shack sensor, to convert the light into electrical signals. A processor then converts the electrical signals into data, such as surface maps showing high-order aberrations and/or artifacts on the test surface, refractive power measurements, shape measurements, and the like. Generated data may then be used to calibrate a laser surgery system.

Abstract: The present invention comprises a closed loop system and method for assessing a performance of a refractive surgical system that is capable of correcting lower and higher order aberrations of the eye. In one embodiment, the refractor surgical system comprises a corneal re-shaping laser system and a refractor system that is capable of measuring low and higher order aberrations of the eye. A software application is capable of transforming the measurements of the refractor system to a treatment plan to control and guide the corneal re-shaping laser system. The systems and methods of the present invention may include a lens that is created by the corneal reshaping laser system and can be measured by the refractor system.

Abstract: The present invention provides an apparatus and method for determining a relative positional and rotational offsets between a first and second imaging device. In exemplary embodiments, the present invention may be used to determine the relative offsets between a Hartmann-Shack wavefront sensor and a pupil camera.