Abstract. Internal environment and appropriate natural lighting of the building interior largely affects the health status and course of treatment of patients with psychiatric diagnoses such as depression, Alzheimer and disorder of functions. In particolar, this paper aims to show how smart glass surfaces, allowing the entry of natural lighting, can better support therapeutic process. It is important to elaborate knowledge for optimized lighting conditions in different healthy populations as well as in patients suffering from visual impairments and circadian rhythm disorders. To contribute to the development of new technologies about smart glass surfaces related to various aspects of light conditions for different populations and patients. In the process of preparation of architectural guidelines, it is essential to summarize the findings of the researchers, technologiest, designers, doctors and other related professionals working in particular environments and based on their incentives to specify requirements the architectural or technical design of the space for elederly people.