This is the 14452nd most frequent Russian word.
офтальмологии
The study of eye diseases and vision care.
In this sentence, 'офтальмология' is the subject of study, referencing the academic field of ophthalmology.
Я изучаю офтальмологию в медицинском университете.
I study ophthalmology at the medical university.
In this sentence, 'офтальмология' indicates the specialized field of a professional doctor.
Она специализируется в офтальмологии как врач-офтальмолог.
She specializes in ophthalmology as an ophthalmologist.
Here, 'офтальмология' is used as a context to describe a field where technological advancements occur.