Abstract: The present disclosure relates to a method and a system for biomechanically characterising ocular tissue (C) through deformation of the ocular tissue. The method comprises: generating an acoustic stimulus for delivery onto the ocular tissue in a collinear anner with an axis of a measuring device, for producing vibration of the ocular tissue; measuring ocular tissue displacement with the measuring device at a plurality of locations of the ocular tissue; obtaining at least a biomechanical parameter by processing the ocular tissue displacements at the plurality of locations. The disclosure also relates to a method and a system for screening biomechanical abnormality of ocular tissue (C).

Abstract: A system for obtaining biomechanical parameters of ocular tissue includes an air-puff module to deliver an air-puff stimulus onto the ocular tissue, and an imaging device operatively coupled to the air-puff module. The air-puff module includes a transparent window at its front with a transparent through hole for delivering the air-puff stimulus. The hole is aligned with an imaging device optical axis, such that the air-puff stimulus delivered onto the ocular tissue can be centred on an apex of the ocular tissue and made collinear with the optical axis. The transparent window and through hole allow continuity of imaging of the ocular surface. The imaging device captures the 3D coordinates of points distributed on an ocular tissue surface in groups of simultaneous points. The system includes a component for selecting and changing location and distribution of captured points on the ocular tissue, and a processing component to process the points.