https://www.usa.gov/government-works https://www.rawpixel.com/image/2282592 Fundoscopic view of the right eye, it's optic nerve and blood vessels supplying the retina. Original image sourced from US…

Fundoscopic view of the right eye, it's optic nerve and blood vessels supplying the retina. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Free Public Domain U.S. Government Image

View license