Optical intraocular pressure measuring apparatus and operating method thereof

Abstract

An optical intraocular pressure measuring apparatus includes a light source, an optical module, a pressure providing module, a deformation measuring module, and a processing module. The light source provides an incident light. The optical module divides the incident light into a first incident light and a second incident light and emits them to a reference object and an object to be detected through a first light path and a second light path, and receives a first reflected light signal from reference object and a second reflected light signal from the object to be detected respectively. The pressure providing module coupled with second light path provides a pressure to deform the object to be detected. The deformation measuring module measures the deformation of the object to be detected. The processing module processes the first reflected light signal and second reflected light signal to generate an intraocular pressure measurement result.

Description

technical field [0001] The present invention is related to optical measurement, in particular to a non-contact optical intraocular pressure measuring device and its operation method. Background technique [0002] In recent years, with the continuous evolution of optical technology, optical interference technology provides a non-invasive method to understand the structure and composition of the target tissue. Due to its non-invasive characteristics, optical interference technology is widely used in human body functions testing and medical diagnosis. [0003] For example, the optical interferometry technique has been applied to the intraocular pressure measuring device of the living body. However, in the process of measuring the intraocular pressure of a living body by the current optical tonometry device, since the eyeball is easily subjected to external force or vibrates by itself, errors are likely to occur in the measurement. In addition, due to the limited measurement r...

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Problems solved by technology

However, in the process of measuring the intraocular pressure of the living body with the current optical tonometry device, the eyeball is easily subjected to external force or vibrates by itself, which leads to errors in the measurement.

In addition, due to the limited measurement range of the current optical tonometry device, although continuous measurement in the depth direction can be performed at multiple points to complete two-dimensional or three-dimensional corneal data, it takes a long time to complete, and due to the measurement The target (eyeball) is often in a dynamic state, which will also cause the results measured by the optical tonometry device to not necessarily belong to the same measurement position, resulting in omission or misplacement of a certain section of corneal data

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