US 11,666,214 B2
Methods and systems for measuring intraocular pressure using soundwaves
Haider Butt, Abu Dhabi (AE); Khamis Essa, Birmingham (GB); Matt Soanes, Birmingham (GB); and Nader Vahdati, Abu Dhabi (AE)
Assigned to KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY, Abu Dhabi (UA); and THE UNIVERSITY OF BIRMINGHAM, Birmingham (GB)
Filed by Khalifa University of Science and Technology, Abu Dhabi (AE); and The University of Birmingham, Birmingham (GB)
Filed on Sep. 15, 2021, as Appl. No. 17/476,016.
Prior Publication US 2023/0079501 A1, Mar. 16, 2023
Int. Cl. A61B 3/16 (2006.01); A61B 5/00 (2006.01)
CPC A61B 3/16 (2013.01) [A61B 5/7275 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for measuring an intraocular pressure of an eye in a human, the method comprising:
directing an acoustic incident wave at a surface of the eye, wherein ear plugs are placed in the ears of the human prior to directing the acoustic incident wave at the surface of the eye;
reflecting the acoustic incident wave off an unapplanated surface of the eye to form an acoustic reflected wave, the acoustic reflected wave travelling away from the unappleanated surface of the eye;
measuring a coefficient of reflection of the acoustic incident wave and the acoustic reflected wave, wherein measuring the coefficient of reflection includes measuring the sound intensity level of the acoustic reflected wave as the acoustic reflected wave travels away from the unapplanated surface of the eye and determining a ratio of a sound intensity level of the acoustic incident wave to the sound intensity level of the acoustic reflected wave; and
determining the intraocular pressure of the eye from the coefficient of reflection.