Eye surgical procedure

A tangible non-transient computer-readable medium having computer-executable instructions stored thereon, the computer-executable instructions including instructions for:

• providing cornea data based on data of a refractive correction;
• specifying the cornea incision surfaces, the cornea incision surfaces including:
• a cap incision surface disposed beneath a surface layer of corneal tissue and partially defining a lenticule volume to be removed,
• a lenticule incision surface disposed beneath the cap incision surface and further defining the lenticule volume to be removed, and
• an access incision configured to enable the lenticule volume to be removed to be removed from the cornea;
• and
• generating a control data record for the cornea incision surfaces for purposes of controlling the laser apparatus,
• wherein:
• (i) the cap incision surface is irregularly shaped and has extensions into surrounding tissue, and/or
• (ii) the lenticule incision surface is irregularly shaped and has extensions into surrounding tissue,
• wherein the lenticule incision surface and the cap incision surface isolate the selected lenticule volume.

A method for eye surgery in which a treatment device creates incision surfaces in a cornea using a laser apparatus, the method comprising:

• providing cornea data based on data of a refractive correction;
• specifying the cornea incision surfaces on the basis of the cornea data and generating a control data record for the cornea incision surfaces, the cornea incision surfaces including:
• a cap incision surface disposed beneath a surface layer of corneal tissue and partially defining a lenticule volume to be removed,
• a lenticule incision surface disposed beneath the cap incision surface and further defining the lenticule volume to be removed, and
• an opening incision configured to enable the lenticule volume to be removed to be removed from the cornea;
• generating a control data record for the cornea incision surfaces for purposes of controlling the laser apparatus;
• transmitting the control data record to the treatment device;
• and
• creating the cornea incision surfaces by controlling the laser apparatus based on the control data record,
• wherein:
• (i) the cap incision surface is irregularly shaped and has extensions into surrounding tissue, and/or
• (ii) the lenticule incision surface is irregularly shaped and has extensions into surrounding tissue,
• wherein the lenticule incision surface and the cap incision surface isolate the selected lenticule volume.