Abstract: An eyewear for a user seeing an image when wearing the eyewear. The eyewear may include a light adjusting means configured to provide a projection light which is perceived by a user's eye when facing a first surface of the light adjusting means, such that the user may see a modified image which is modified from an original image. The light adjusting means may be configured to provide a modified amount of positive contrast signal, for a retina of an eye of the user, in the modified image as compared to the original image.

Abstract: A monitoring equipment including an eyewear that includes a frame, at least one lens that is fixed to the frame and that is able to change the natural evolution of an optical deficiency, a wearing sensor able to determine if the eyewear is being worn by a wearer, and a processing unit that is programmed to acquire the data determined by the wearing sensor, deduce therefrom a parameter relative to the length of time the wearer has worn the eyewear during a predetermined period, and compare said parameter with at least a predetermined datum to determine a level of efficiency of the optical deficiency treatment.

Abstract: The present invention relates to an eyewear device comprising a system for alerting of a need of an eye examination and/or a change of frame and/or a change of lens of the eyewear device, in order to provide the best visual correction and comfort. The invention also relates to a process for monitoring the need of an eye examination and/or a change of frame and/or lens of an eyewear device, comprising using an eyewear device according to the invention, and to a process for manufacturing an eyewear device according to the invention.