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:
Aug. 25, 2026
Filed:
Apr. 18, 2023
Alcon Inc., Fribourg, CH;
Sissimos Lemonis, Rückersdorf, DE;
Alcon Inc., Fribourg, CH;
Abstract
A system for generating an ophthalmic nomogram for treating an eye includes a computer. The computer stores post-operation refraction data. The post-operation refraction data comprises notations that comprise a sphere and a cylinder and describe a post-operation correction. The computer creates a nomogram data set comprising selected spheres by performing the following for each notation: if the notation is expressed as a plus notation, determine a minus notation corresponding to the plus notation; if the notation is expressed as a minus notation, determine a plus notation corresponding to the minus notation; identify whether the plus notation or the minus notation has a lower absolute sphere; designate the lower absolute sphere of the identified notation as a candidate sphere; and determine whether to designate the candidate sphere as a selected sphere. The computer program calculates the ophthalmic nomogram from the selected spheres.