US 12,245,817 B2
Non-invasive intraocular pressure monitor
Yong Jun Lai, Kingston (CA); Kong Ying Xie, Kingston (CA); and Robert James Campbell, Kingston (CA)
Assigned to Queen's University at Kingston, Kingston (CA); and Kingston Health Sciences Centre, Kingston (CA)
Filed by Queen's University at Kingston, Kingston (CA); and Kingston Health Sciences Centre, Kingston (CA)
Filed on Jun. 23, 2023, as Appl. No. 18/213,356.
Application 17/020,211 is a division of application No. 15/461,881, filed on Mar. 17, 2017, granted, now 10,772,502, issued on Sep. 15, 2020.
Application 18/213,356 is a continuation of application No. 17/020,211, filed on Sep. 14, 2020, granted, now 11,684,258.
Claims priority of provisional application 62/310,432, filed on Mar. 18, 2016.
Prior Publication US 2024/0164638 A1, May 23, 2024
Int. Cl. A61B 3/16 (2006.01); A61B 3/14 (2006.01); A61B 5/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 3/16 (2013.01) [A61B 3/14 (2013.01); A61B 5/0077 (2013.01); A61B 5/6821 (2013.01); A61B 5/6898 (2013.01); A61B 2090/3937 (2016.02); A61B 2562/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A device for monitoring intraocular pressure (IOP) of a subject, comprising:
a non-invasive lens that is adapted to fit on the subject's eye;
a microstructure disposed in or on the lens;
at least one feature of the microstructure that exhibits a change in shape and/or geometry in response to a change in curvature of the lens;
wherein the at least one feature is at least one marker consisting of a hole through the lens or a divot in the lens;
wherein the lens is adapted to change curvature in response to a change in IOP;
wherein the change in shape and/or geometry of the at least one marker is detectable in digital images of the lens, or of a part of the lens; and
wherein the change in shape and/or geometry of the at least one marker directly correlates with a change in IOP.