This section of the MusEYEum takes a broad definition of what constitutes optical entertainment. Not all of it is savoury, but it all involves lenses or visual effects.
The first binoculars were for use indoors.
Small hand-held telescopes.
A sneaky sideways peek.
Sports vision is a specialist area of optometry.
It's play time at the MusEYEum
All is not as it may appear.