1) A branch of instrumentation engaged in the design and production of typhlotechnical devices (typhlodevices) designed to correct and compensate for impaired visual functions, as well as for the development and restoration of vision.
2) Typhlotechnical devices and devices. Tourism is developing in three directions: cultural, domestic, industrial, and educational. Everyday communication flies around the orientation of the blind and visually impaired in space and expands their ability to perceive the external environment and provides for their cultural and domestic needs. Industrial labor helps to increase the productivity of the blind and visually impaired, makes it possible to perform production operations that were previously inaccessible to them, to master new prestigious professions and types of skilled labor, and also ensures safety at workplaces. The task of educational tourism is to optimize the conditions for teaching visually impaired persons the basics of the sciences and to improve their polytechnic and vocational training.