### Commercial Software Applications for Blind and Severely Visually Impaired Persons' Assistance  
A significant part of software applications designed for individuals with visual impairment is closely related to assistive technology, playing a crucial role in enabling voice-based reading. Their main purpose is to convert text into speech, making it more accessible for the blind and visually impaired and facilitating their access to written information, documents, and websites. Popular software applications like Job Access with Speech (JAWS) [23] and NonVisual Desktop Access (NVDA) [24] are widely used for this purpose. JAWS, developed by Freedom Scientific, is renowned for its ability to provide voice-based reading and enhanced accessibility, converting on-screen text and graphics into speech or Braille. Its features include compatibility with online platforms, the Microsoft Office suite, web browsers, email applications, and social media. NVDA, on the other hand, is an open-source software solution that offers similar functionalities but stands out for its portability and compatibility across various operating systems and digital resources. Additionally, there are electronic Braille devices, GPS navigation systems integrated with mobile applications like Lazarillo (2016) and BlindSquare (2017), voice recognition systems like Siri (2017) and Google Assistant (2018), or VoiceOver (2019) for Apple devices, which provide accessibility features and support for users with visual impairment. There are also mobile applications designed to identify colors in the user's surroundings, such as Be My Eyes (2019), which allows users to request assistance from volunteers. These assistive technologies, along with handwriting-to-text conversion apps and Braille printers, contribute to creating a more inclusive and accessible environment for individuals with visual impairments. Considering the important role of education, as well as the fundamental right to education, assistance software solutions for this purpose have been developed. Thus, specialized educational resources, AI assistance in online education, wearable technologies for content recognition and vocal feedback, and Haptic Wearables for urban navigation have been developed to enhance the daily lives and educational experiences of people with visual impairments. The rapid advancement of technology, including Virtual Reality (VR) and Augmented Reality (AR), has revolutionized the field of assistive technologies, providing innovative and intuitive solutions for the visually impaired. The integration of emerging technologies is transforming the way individuals with visual impairments access information and engage in educational processes. Accessibility standards like Web Content Accessibility Guidelines (WCAG) (2019) have played a pivotal role in ensuring that digital learning platforms and online courses are inclusive for individuals with disabilities. While current studies and developments in this field are still in their early stages, the complexity of addressing the needs of VIPs has led to significant advancements, particularly in the medical field. These advancements range from retinal implants to facial recognition, text reading, and audio playback, with the ultimate goal of enhancing the quality of life for individuals with visual impairment. Visible Light Communications and Their Potential in Blind and Severely Visually Impaired Persons' Assistance  
Over the past decade, VLC has emerged as an exciting wireless technology that has witnessed significant advancements. As previously mentioned, VLC uses visible light not only for illumination but also as means of transmitting data, thereby enabling pervasive wireless communication. Consequently, VLC has the remarkable capability to transform any LED light source into a data transmission device. Moreover, extensive research efforts have unlocked the potential of VLC for achieving highly precise localization, making it a valuable technology for delivering position-specific data.