Patent ID: 11925413
Assignee: ARASH GHAREH BAGHI
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. A system (1) for determining ophthalmic parameters of a subject, the system comprising a probe (11) and a processor (10), wherein the processor is arranged to register velocity and time of a probe body (2) of the probe (11) during movement of the probe body in a first direction travelling towards a corneal outer surface of an eye of a subject, during impact of an end (2a) of the probe body (2) with the corneal outer surface (b), when completely stopped on the eye (c), and during rebound movement of the probe body (2) in a second direction, opposite to the first direction, and the processor (10) further is arranged to, based on a curve obtained from the registered velocity and time of the probe body (2), calculate an intraocular pressure (ρ) of the eye as a slope between a time when the end (2a) of the probe body (2) first impacts the corneal outer surface (b) and the time when the probe body (2) is completely stopped on the eye (c), and to,
based on said time-velocity curve, calculate a central cornea thickness (D) using a velocity of the probe body (2) at a moment of contact of the end (2a) of the probe body (2) with the corneal outer surface (b), Vr, and a velocity of the probe body (2) at the moment when the end (2a) of the probe body (2) leaves the corneal outer surface during rebound movement of the probe body (2) in the second direction, Vb.