Abstract: A method for measuring a tear meniscus including: instilling fluorescein on the surface of a patient's eye to be examined, illuminating the eye to be examined with blue light and capturing an image of the eye to be examined, the image including non-fluorescent blue zones in the absence of fluorescein and fluorescent green zones in the presence of fluorescein, and in which the image analysis includes: identifying the tear meniscus and measuring its height in pixels, identifying the iris and measuring its outer diameter in pixels, calculating a ratio between an estimated or also measured physical diameter of the iris and its measurement in pixels and calculating the physical height of the tear meniscus based on this ratio.

Abstract: Device and method for detecting tear film breakup, including a backlit translucent plate having a test chart positioned in front of at least one eye of a patient and having a pattern that reflects on the patient's eye, and at least one digital photographic camera connected to a computing system provided with means for processing and analysing images, a lens of the camera pointing towards the patient's eye in order to photograph a reflection of the test chart pattern on the patient's eye, wherein the test chart has a series of lines in the form of alternating horizontal or vertical transparent and opaque lines that form the pattern and at least one opening facing the camera lens.

Abstract: Method for measuring the stability of a tear film of a patient using a device including a backlit translucent plate provided with a test chart positioned in front of at least one eye of the patient, at least one digital photographic camera connected to a computing system, and a camera lens pointing towards the patient's eye to photograph a reflection of a test chart pattern on the patient's. The method includes, from a starting time constituted by an eyelid blink, capturing a succession of images, detecting a succession of micro-movement areas in the images, and computing and storing data on the position, surface area and number of micro-movement areas of the tear film in each image, and computing and storing surface area and number of micro-movement areas of the tear film, and a measurement of the amplitude of the micro-movement areas as a function of time.

Abstract: An ophthalmological measuring device including an ocular measuring unit including a front face provided with a frame encircling a translucent plate the size and curvature of which are suitable for covering the ocular field of said patient, a device for providing uniform backlighting of the translucent plate, located behind the translucent plate, at least one camera equipped with an objective placed in line with a hole in the translucent plate, one or more point light sources in apertures on the edges of the translucent plate, for illuminating the eyes of the patient, and means for fastening one or more additional ophthalmological measuring devices to the translucent plate.