“Visually impaired” isn’t really a euphemism for “blind.” It’s a broader term that can include people with different degrees of vision loss, including people who are partially sighted and people who are blind. So in this context, the article is using the term pretty normally.

Also, wearing glasses doesn’t automatically make someone visually impaired. If your vision is fully corrected with glasses or contacts, you generally wouldn’t be considered visually impaired. The term usually refers to vision loss that remains even with the best available correction.