US 11,717,395 B2
Intra-ocular lens for extended macular vision in patients with macular degeneration
Muhammad A. Qureshi, London (GB); Pablo Artal, Murcia (ES); and Scott Robbie, London (GB)
Assigned to SYNEOS HEALTH INTERNATIONAL LIMITED, Farnborough (GB)
Filed by SYNEOS HEALTH INTERNATIONAL LIMITED, Farnborough (GB)
Filed on Sep. 20, 2021, as Appl. No. 17/479,437.
Application 17/479,437 is a continuation of application No. 16/691,590, filed on Nov. 21, 2019, granted, now 11,147,662.
Claims priority of provisional application 62/770,999, filed on Nov. 23, 2018.
Prior Publication US 2022/0000607 A1, Jan. 6, 2022
Int. Cl. A61F 2/16 (2006.01)
CPC A61F 2/1624 (2013.01) [A61F 2/1637 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for manufacturing an intraocular lens (IOL) system for improving patient's vision, the method comprising:
forming a lens from a soft hydrophobic polymeric compound, the lens having a first surface and a second surface and an optical power of P diopters;
said lens being characterized by an optical zone diameter (D) and a central thickness (T);
said first surface is spherical having a first radius of curvature (R1);
said second surface is a rotationally symmetric conic surface, having a second radius of curvature (R2), and having surface sag (z coordinate) which is a function of a radial coordinate (r) is given by:

OG Complex Work Unit Math
where: c=1/r,
k=conic constant;
wherein as the dioptric power of the lens increases by more than one diopter, the conic constant remains constant.