## 7 Conclusions  
The Digital Twin concept and technology are increasingly recognized as powerful tools for simulating, monitoring, and optimizing complex systems across a wide range of domains and applications, including industry and medicine. This paper aims to provide an analysis of the Digital Twin concept, exploring its evolution, current status, and future prospects. It addresses several key research questions: What is the current state of Digital Twin technology? How is it applied across different domains? What are the benefits and challenges associated with its adoption? Finally, how can existing architectures be integrated into a new proposed architecture for specific applications, such as in ophthalmology?  
The study begins by examining the current state of Digital Twin technology. A comprehensive literature review reveals a significant upward trend in the number of research articles published on this topic. This trend indicates not only the growing maturity of the concept but also its widespread adoption by large research communities.  
Digital Twin technology has found applications in numerous fields, including manufacturing, medicine, energy production, education, and smart cities.  
The benefits of Digital Twin technology are numerous, including improved efficiency, reduced costs, enhanced performance, and the ability to simulate and predict complex system behaviors. However, several challenges need to be addressed. These include data integration issues, security concerns, and regulatory compliance. The increasing use of machine learning and artificial intelligence holds the potential for overcoming these challenges by providing more accurate predictions and enhancing the capabilities of Digital Twins.  
Building on the insights gained from existing Digital Twin architectures, this paper proposes a new architecture specifically designed for applications in ophthalmology. This architecture aims to integrate real-time data from various sensors, utilize advanced analysis and prediction techniques, and ensure interoperability, performance, security, and reliability. The proposed modular architecture will facilitate the precise and personalized medical care needed for detecting and managing eye-related diseases.  
In conclusion, this study provides a detailed examination of the Digital Twin concept, technologies, and architectures, highlighting their applicability across various domains and industries. The research underscores the significant potential of Digital Twin technology to drive innovation and efficiency in multiple fields. By addressing the ongoing challenges and proposing a new architecture for specific applications like ophthalmology, this study contributes to the advancement of Digital Twin technology and its integration into practical, real-world solutions. This holistic approach ensures a comprehensive understanding of Digital Twin technology's impact, paving the way for future research and development in this dynamic field.  
M.-[PERSON] was responsible for conceptualization, writing the original draft, and writing--review and editing. [PERSON]-[PERSON] contributed to validation, supervision, and writing--review. [PERSON] worked on conceptualization and writing the original draft. [PERSON]-[PERSON] handled formal analysis, validation, and supervision. [PERSON]-[PERSON] was in charge of methodology and supervision. [PERSON]-[PERSON] contributed to visualization and supervision. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.