Abstract: Aspects relate to a compact material analyzer including a light source, a detector, and a module including a first optical window on a first side of the module, a second optical window on a second side of the module opposite the first side, and a light modulator. The light source produces input light at a high power that is passed through the first optical window to the light modulator. The light modulator is configured to attenuate the input light, produce modulated light based on the input light, and direct the modulated light through the second optical window to the sample. The modulated light produced by the light modulator is at a lower power safe for the sample. The detector is configured to receive output light from the sample produced from interaction with the modulated light through the second optical window and to detect a spectrum of the output light.

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.

Abstract: Aspects relate to a compact material analyzer including a light source, a detector, and a module including a first optical window on a first side of the module, a second optical window on a second side of the module opposite the first side, and a light modulator. The light source produces input light at a high power that is passed through the first optical window to the light modulator. The light modulator is configured to attenuate the input light, produce modulated light based on the input light, and direct the modulated light through the second optical window to the sample. The modulated light produced by the light modulator is at a lower power safe for the sample. The detector is configured to receive output light from the sample produced from interaction with the modulated light through the second optical window and to detect a spectrum of the output light.

Abstract: A method of determining the intraocular pressure of an eye of a subject, the method comprising the steps of: providing a measurement device comprising a contact lens having a pressure sensor, introducing the measurement device into the eye of the subject, obtaining data from the measurement device whilst the eye of the subject is open, and using the data to determine the intraocular pressure of the eye.

Abstract: Disclosed is a device adapted to measure intraocular pressure comprising: a corneal contact lens having a pressure sensor mounted in a recess or cavity in the contact lens, and wherein the contact lens has a back surface which is formed so as to protrude in a desired portion beyond the profile of the adjacent part of the lens and thus to press against the cornea, which protruding portion experiences a reactive deformation which is detected directly or indirectly by the pressure sensor.

Abstract: Disclosed is a device adapted to measure intraocular pressure comprising: a corneal contact lens having a pressure sensor mounted in a recess or cavity in the contact lens, and wherein the contact lens has a back surface which is formed so as to protrude in a desired portion beyond the profile of the adjacent part of the lens and thus to press against the cornea, which protruding portion experiences a reactive deformation which is detected directly or indirectly by the pressure sensor.

Abstract: A non-invasive device adapted to measure intraocular pressure (IOP) comprising: a pressure sensor mounted on a soft contact lens to be worn on the eye of a subject, wherein the device is adapted such that, when worn on the eye, the pressure sensor is located at or near the transitional region of the cornea. The pressure sensor communicates wirelessly to an external controlling device through a magnetic field-based telemetry system that serves to power the pressure sensor and transmit the pressure measurements to the external device.