US 12,433,789 B2
Treatment apparatus for operatively correcting defective vision of an eye, method for generating control data therefor, and method for operatively correcting defective vision of an eye
Mark Bischoff, Jena (DE); Gregor Stobrawa, Jena (DE); and Wilfried Bissmann, Jena (DE)
Assigned to Carl Zeiss Meditec AG, Jena (DE)
Filed by Carl Zeiss Meditec AG, Jena (DE)
Filed on May 15, 2024, as Appl. No. 18/665,313.
Application 14/804,922 is a division of application No. 12/742,194, granted, now 9,084,666, issued on Jul. 21, 2015, previously published as PCT/EP2008/009076, filed on Oct. 27, 2008.
Application 18/665,313 is a continuation of application No. 17/806,009, filed on Jun. 8, 2022, granted, now 12,011,392.
Application 17/806,009 is a continuation of application No. 16/426,836, filed on May 30, 2019, granted, now 11,357,667, issued on Jun. 14, 2022.
Application 16/426,836 is a continuation of application No. 14/804,922, filed on Jul. 21, 2015, granted, now 10,327,950, issued on Jun. 25, 2019.
Claims priority of application No. 102007053283.2 (DE), filed on Nov. 8, 2007.
Prior Publication US 2024/0374427 A1, Nov. 14, 2024
Int. Cl. A61F 9/008 (2006.01); A61B 34/10 (2016.01); H01S 3/00 (2006.01)
CPC A61F 9/00804 (2013.01) [A61B 34/10 (2016.02); A61F 9/008 (2013.01); A61F 9/00827 (2013.01); A61F 9/00836 (2013.01); A61F 2009/00872 (2013.01); H01S 3/005 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A treatment apparatus for surgical correction of defective vision in an eye, the treatment apparatus comprising:
a laser device including a laser, optics and a focus shifting device, wherein the laser device is controlled by a control device and separates corneal tissue of the eye by applying laser radiation;
the control device being programmed with an algorithm that controls an operation of the laser device to emit the laser radiation into a cornea at different focus positions wherein the controlled operation of the laser device isolates a lenticular shaped volume in the cornea, the lenticular shaped volume being structured such that removal of the volume effects a desired correction of the defective vision; and
the control device being programmed with an algorithm that controls the operation of the laser device such that the lenticular shaped volume is confined by a posterior face, an anterior face and an edge face, wherein the posterior face and the anterior face are connected via the edge face, wherein the edge face comprises a continuously curved portion including, when viewed in cross section, at least one of a concave portion, a convex portion and a combination of concave and convex portions relative to an axis of vision continuing from the posterior face of the lenticular shaped volume and extending to the anterior face.