Historical clue formulations

• X-ray ___ (novelty goggles) — 2025-03-25
• Glasses, informally — 2024-09-22
• X-ray ___ (novelty purchase) — 2023-11-25
• Optometrist's offering, casually — 2022-03-17
• Glasses, informally — 2021-12-16
• Glasses, informally — 2021-08-10
• Glasses, in slang — 2020-10-25
• Glasses, in adspeak — 2020-09-09
• X-ray ___ — 2019-03-03
• X-ray ___ (gag gift) — 2017-05-29
• Glasses, informally — 2015-07-30
• X-ray ___ — 2013-06-28
• See 50-Across — 2009-12-28
• X-ray ___ (novelty item) — 2009-12-14
• X-ray ___ — 2008-04-27
• Glasses, slangily — 2006-02-15
• X-ray ___ (kids' goggles) — 2005-05-16
• Glasses, commercially — 2001-12-12
• Glasses, in ads — 1997-10-28