Device and method for performing measurements of the chemical composition of the anterior eye

摘要

The present invention relates to a device for determining the chemical composition of a living eye comprising light emitting means, light guidance means comprising at least one first focussing lense ( 2 ) having an entry surface ( 2 a) and an exit surface ( 2 b) to be brought in optical contact with the eye for illuminating at least part of said eye with a light beam emitted by said light emitting means and for receiving and guiding at least a fraction of the light beam leaving the eye as a result of said illumination towards light detecting means for determining the chemical composition of said eye by analysing said fraction of light and wherein said light guidance means are arranged for illuminating said part of the eye with a light beam having an oblique angle of incidence with respect to the visual axis of the eye. According to the invention said light guidance means comprises a further focussing lense ( 4 ) having an entry surface ( 4 a) and an exit surface ( 4 b), wherein said exit surface has a curvature conformal to the wave front of the light beam leaving said exit surface and impinging on said part of said eye.