| 摘要 |
<p>A surgical microscope apparatus for use while suturing an incision in the cornea for configuring the cornea to a spherical surface having a radius of curvature of a predetermined magnitude is disclosed. The microscope system includes a light source for projecting an image onto the cornea and prisms for optically splitting the image on the cornea into a plurality of images within the surgical field of view for viewing through the binocular eyepieces. The optical system can be adjusted to orient the images into a predetermined alignment and configuration indicative of the radius of curvature, the alignment and configuration occurring when the cornea sutures are tensioned correctly to indicate a spherical surface of the predetermined radius of curvature. The prisms are so-positioned to permit a portion of the surgical field of view to pass through the microscope undeviated to enable the surgeon to utilize the necessary suturing tools without multiple images of the tools. In a first embodiment a fixed location prism array is utililized for optically splitting the image and the optical system is adjusted by varying the magnification powers of the microscope. In a second embodiment, rotary prisms are in a fixed position within the optical path for optically splitting the image and the optical system is adjusted by varying the prism power.</p> |
