Public perception, in political lingo

• Sudden movement in operations to make lenses
• Political perception
• Branch of physics
• A science
• Work that involved colour spectra originally
• Eye doctor's science
• The branch of physics that studies the physical properties of light

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
"science of sight and light," 1570s, from optic ; also see -ics . Used for Medieval Latin optica (neuter plural), from Greek ta optika "optical matters," neuter plural of optikos "optic."

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun COLLOCATIONS FROM OTHER ENTRIES fibre optics ▪ fibre optic cables COLLOCATIONS FROM CORPUS ■ NOUN fiber ▪ To head off competition, the telcos have invested heavily in fiber optics and sophisticated switching technology. ▪ But fiber optics may change ...