Integrated surgical microscope and wavefront sensor

A surgical device for measuring properties of an eye, comprising:

• a surgical microscope providing a stereoscopic first field of view, the surgical microscope comprising a first housing and an objective lens;
• and
• a wavefront sensor for performing refractive measurements of the eye, the wavefront sensor providing a second field of view and comprising
• a different second housing the second housing comprising an optical passageway therethrough, and
• a combining optical element located in the second housing along the optical passageway, wherein the combining optical element is positioned to receive light that reflects from the eye and to send a first portion of the light reflected from the eye outside the second housing to the surgical microscope via the optical passageway through the second housing, and to send a second portion of the light reflected from the eye to one or more optical components within the second housing,
• wherein the second field of view of the wavefront sensor is optically aligned with the first field of view of the surgical microscope,
• wherein the wavefront sensor does not compromise the focal length of the surgical microscope, and
• wherein the wavefront sensor and the surgical microscope are not integrated with a laser for performing refractive correction on the eye.