A smiling man with gray hair and glasses, dressed in black, is sitting in a chair with a music stand in front of him.
This elderly man is nearsighted.
A man is not assumed to be elderly or nearsighted.
Not all men with gray hair and glasses are elderly. There are different types of glasses that are not necessarily only for nearsighted people.
A man wearing glasses may be nearsighted or farsighted or neither and a man may belong to  any one of many ages categories other than elderly.