who worked with amplified sunlight. By the 19th century, tinted spectacles were worn by railway travelers.

Popularly, it is claimed that yellow/amber and brown-tinted glasses had been used to alleviate symptoms of syphilis in the 19th and early 20th centuries, because sensitivity to light was one of the symptoms of the disease, although no sources have been found that state prescription of such.

From the late 19th century, short references of sunglasses have been found in reports, such as one

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