05803923 is referenced by 75 patents and cites 7 patents.

A zone of increased curvature is produced in the inferior lower quadrants of the cornea FIG. 1 (5). This zone produces a "plus effect" FIG. 2 (5) which leads presbyopia patients to be able to read from near distance again. Such effect is achieved using photoablitive techniques and fixation, patterns, and apparatus specially designed.

Title
Presbyopia correction using a protected space pattern, methods and apparatus
Application Number
8/306660
Publication Number
5803923
Application Date
September 15, 1994
Publication Date
September 8, 1998
Inventor
Etelvino Teixeira Coelho
Madalena Recife
PE
Heraldo Sa Martins
Madalena Recife
PE
Jugvir Inder Singh Derewa
Orlando
FL, US
Assignee
Jugvir I Singh Derewa
CT, US
IPC
A61N 5/02
View Original Source