The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2023
Filed:
Aug. 17, 2017
Lutronic Vision Inc., Burlington, MA (US);
Zhen Xiao, Beijing, CN;
Abstract
A contact lens () may include a contact lens body (), an exterior contact surface (), and an annular bifocal surface (). The contact lens () may be configured for use in a contact lens assembly () for laser-based ophthalmological surgical treatments. The exterior contact surface () may be on a first end of the contact lens body (). The exterior contact surface () may be configured for direct physical contact with a cornea () of an eye () of a patient. The annular bifocal surface () may be on a second end of the contact lens body (). The second end may be opposite the exterior contact surface (). The annular bifocal surface () may include a central portion (). The central portion () may include a first focal distance. The annular bifocal surface () may include an outer portion () that surrounds at least a portion of the central portion (). The annular bifocal surface () may include a second focal distance.