Dear colleagues & friends, It is our great pleasure to welcome you to the 15th Annual International Meeting of Research Institute of Ophthalmology (RIO). That’s held from 16 to 17 March, 2023 at Hilton Heliopolis, Cairo, Egypt. The theme of our conference this year is “Current & Future Challenges of Ophthalmic Practice”. A highly selective both international & national faculty will enrich the scientific program by addressing several controversial and challenging subjects and situations. This will be through lectures, symposia, panel discussions, video presentations and interactive sessions. All this is in addition to instructive courses and wet labs. A new session “ future & innovation ” will provide a tangible Knowledge of near future practice, An exhibition area will present the most updated surgical and pharmaceutical equipment in the field. Fantastic tours will be offered to visit the charming old and modern places of our inviting and warm city Cairo. Wish you a very nice and memorable stay with friends in Egypt exchanging ideas and opinions both on scientific and social levels.