Assistive technologies (AT) are defined by ISO 9999 as "any product, instrument, equipment or technical system used by people with disabilities to improve functioning, prevent difficulties and promote well-being and independence." The global assistive technology market was worth approximately 26 billion dollars in 2023 and is growing at 5-7% annually. The World Health Organization estimates that 2.5 billion people worldwide could benefit from assistive technologies, but only 17% of those who need them have access. In Italy, the Nomenclature of Prosthetics and Aids (D.M. 332/1999, being updated with DM Salute 2023) defines aids reimbursed by the National Health Service. The new Nomenclature has significantly expanded the list of reimbursable devices, including many new technologies.

Eye Tracking and Gaze Control

Eye tracking is one of the most transformative technologies for people with severe motor disabilities. How it works: infrared cameras track eye movements with millimeter precision. Eye movement controls the computer cursor, allows typing on virtual keyboards, enables communication through AAC symbols, and controls smart home systems. Real-world applications: Tobii Dynavox (the global leader): devices that integrate eye tracking, AAC (Augmentative and Alternative Communication) software and computer control. They enable people with ALS, tetraplegia and locked-in syndrome to communicate, browse the internet, and control smart homes. Cost: €5,000-15,000. Partially reimbursed by the National Health Service. The Grid 3 (PC accessibility software with eye tracking): allows customization of the interface for specific communication needs. EyeControl: a low-tech Israeli device that uses eye blinking with a mobile phone for emergency communication. Recent developments: eye tracking is now available on smartphones (Samsung Galaxy S series with FrontCamera tracking: free, integrated). Apple introduced Eye Tracking as an accessibility feature in iOS 18: control your entire iPhone with just eye movements. A free feature on devices you already own that opens new possibilities at zero cost.

Exoskeletons and Robotic Orthoses

Exoskeletons are wearable mechanical structures that amplify residual muscle strength or replace absent muscle function, allowing people with paraplegia to walk or people with muscle weakness to perform functional movements. Exoskeletons for walking (paraplegia): ReWalk (ReWalk Robotics): one of the first commercial exoskeletons approved by the FDA (2014). It allows people with spinal cord injury from T4 to L5 to walk on flat terrain. Requires crutches for balance. Approved by the Italian National Health Service for use in some rehabilitation facilities. Ekso (Ekso Bionics): similar to ReWalk, used mainly in hospital rehabilitation. Indego (Parker Hannifin): lighter, approved for home use. Robotic orthoses for the upper limbs (tetraplegia, stroke): SaeboGlove and SaeboFlex: mechanical hand orthoses that support grip opening and closing. Widely used in post-stroke rehabilitation. MyoPro (Myomo): myoelectric arm orthosis that amplifies EMG (electromyographic) signals from residual muscles to control arm movement. Useful in post-stroke hemiplegia and some myopathies. Exoskeleton for post-stroke walking: the Lokomat (Hocoma) is a robot for gait retraining used in intensive rehabilitation. It is not a device for home use but for clinical use.

Brain-Computer Interfaces (BCI) and the Future

Brain-Computer Interfaces (BCI) are systems that read the electrical activity of the brain (through electrodes on the scalp surface or implanted in the brain) and translate it into commands for computers, communicators, prosthetics or smart home systems. State of the art: Non-invasive BCI (EEG): caps with electrodes that read electrical activity from the scalp. Limited precision but do not require surgery. Used for basic communication systems (P300 speller: allows typing letters by choosing with visual attention, at speeds of 10-25 letters per minute) and for wheelchair control in people with locked-in syndrome. Semi-invasive and invasive BCI: the Neuralink project (Elon Musk) implanted the first device in a human in January 2024. The first patient (Noland Arbaugh, tetraplegic) controlled a computer cursor and played chess with his thoughts. Extraordinary results previously achieved by other research centers (BrainGate, Brainard Lab at the University of Pittsburgh). Invasive BCIs are still in clinical trial phase (not commercially available). But the pace of advancement in the field suggests broad clinical applications within 5-10 years. Potential impact: for people with advanced ALS, locked-in syndrome, complete tetraplegia, BCIs could be the technology that restores communication and environmental control even without any residual physical movement.

Communication Technologies: AAC and Communication Devices

Augmentative and Alternative Communication (AAC) includes all methods and technologies that support communication for people with difficulties in oral language. Communication devices with voice output (VOCA: Voice Output Communication Aids): Tobii Dynavox, GRID Pad (Smartbox), Accent (Prentke Romich): specialized devices with AAC software and voice synthesis. Allow communication through eye tracking, switches, touch screens. Apps for smartphones and tablets: Proloquo2Go (iOS): the most widely used AAC app for iPad. ARASAAC or Boardmaker symbols. Subscription cost. Grid Player (Smartbox): iPad app compatible with The Grid 3 communication grids. LetMe Talk (Android): free AAC app with ARASAAC symbols. Excellent for getting started on a budget. Cboard (web-based, free): open-source multilingual AAC platform with ARASAAC symbols. Accessible from any browser. Personalized voice synthesis: Acapela Voice Banking, ModelTalker (free): allow you to record your own voice before a progressive illness compromises it (ALS, advanced MS). The recorded voice is transformed into a personalized voice synthesizer. A gift for your future self. For children with dyslexia and communication difficulties: tablets with AAC apps are now the most common communication tool. Assessment and selection of the most suitable AAC system is the responsibility of a speech-language pathologist with specific AAC training.

Technologies for Visual Disability: Recent Innovations

Technologies for people with visual disabilities have advanced enormously in the last 5 years. Advanced screen readers: NVDA (Windows, free) and JAWS (Windows, paid) for PC. VoiceOver (iOS, integrated) and TalkBack (Android, integrated): free and very powerful. Every iPhone and iPad includes VoiceOver for the blind: no additional cost. OCR and text recognition: Microsoft Seeing AI (iOS, free): the most comprehensive visual assistance app. Describes photographed scenes, reads text, recognizes faces, identifies products from barcodes. AI technology. OrCam MyEye: wearable device mounted on eyeglass frames that reads text aloud, recognizes faces, identifies objects, all in real time. Cost: €3,500-4,500. Performances with audio description: many Italian theaters and cinemas offer performances with audio description (the scene is verbally described to blind spectators through an earpiece). Indoor navigation: Microsoft Teams Navigation and NFC beacons installed in some Italian museums and stations allow internal navigation through beacons with voice information. Glasses with enhanced vision (low vision): OrCam MyEye Pro, Esight: amplify and improve images for people with residual vision. Various models partially reimbursed by the National Health Service.

How to Access Assistive Technologies in Italy: The National Health Service Pathway

Access to assistive technologies through the National Health Service in Italy follows this pathway. Specialist prescription: the prescription must be issued by a specialist doctor (physiatrist, neurologist, audiologist, ophthalmologist, pediatric neurologist depending on the type of AT) working in the National Health Service. The prescription must justify the specific clinical need for the device. Regional Health Authority authorization: the competent Regional Health Authority evaluates the prescription and its consistency with the Nomenclature of Aids. Approval within 30 days (actual times are often longer). Device delivery: the device is delivered directly by the Regional Health Authority (through the aids warehouse) or purchased by the person who is then reimbursed. Training: often necessary (and required by the National Health Service) for device use. The speech-language pathologist (for AAC), occupational therapist (for motor aids), and vision specialist (for aids for the blind) provide training. Renewal and maintenance: the Nomenclature provides for device replacement after a minimum period of use and maintenance at the expense of the National Health Service. Support from associations: SIVA (Service for Information and Evaluation of Aids: portale.siva.it) has the most complete database of aids available in Italy with technical sheets, prices and information on National Health Service reimbursement.