Dear Oleksandr Serhiiovych,

Please accept our most sincere and heartfelt congratulations on the occasion of your remarkable anniversary — your 90th birthday!

Your life path is a model of devoted service to science, medicine, and humanity. You belong to the cohort of outstanding scientists who not only advance national ophthalmology but also shape its modern scientific foundations, introducing advanced diagnostic and treatment methods in line with the highest international standards.

As a representative of leading scientific schools, you have not only preserved their traditions but also significantly enriched them, establishing your own scientific direction in ophthalmic oncology. The innovative cryogenic and combined treatment methods, original technologies, and scientific approaches developed with your participation have made it possible to preserve vision and improve the quality of life of thousands of patients.

Your work as a scientific leader, mentor, and educator is especially noteworthy. Under your guidance, a new generation of scientists and physicians has been formed, who continue to advance medical science with dignity. Your scientific publications, inventions, and practical developments constitute an important part of Ukraine’s modern medical heritage and have earned well-deserved recognition within the professional community.

On this memorable day, we wish you excellent health, inner strength, well-being, and boundless energy. May you always be surrounded by the respect of colleagues, the gratitude of your students, and the warmth of your loved ones.

With deepest respect and best wishes!