US 11,684,258 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 Sep. 14, 2020, as Appl. No. 17/20,211.
Application 17/020,211 is a continuation of application No. 15/461,881, filed on Mar. 17, 2017, granted, now 10,772,502.
Claims priority of provisional application 62/310,432, filed on Mar. 18, 2016.
Prior Publication US 2021/0093196 A1, Apr. 1, 2021
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, including two or more markers disposed in a spaced relationship on the lens, a distance between the two or more markers being related to a curvature of the lens;
wherein the lens is adapted to change curvature in response to a change in IOP;
wherein the distance between the two or more markers changes according to the change in curvature of the lens;
wherein the change in distance between the two or more markers is detectable in digital images of the lens, or of a part of the lens, and indicates a change in IOP.