Scissors-glasses

Scissors-glasses are a type of spectacles that were invented in the 18th century. They are named for their unique design, which resembles a pair of scissors. The lenses are mounted on two telescopic arms that can be adjusted to fit the wearer's face. This design allows for a greater range of adjustment than traditional spectacles, making them particularly useful for people with unusual facial features or who require a high degree of optical correction.

History

Scissors-glasses were first invented in the 18th century. They were initially used by the aristocracy, who valued them for their novelty and the precision with which they could be adjusted. Over time, they became more widely available and were used by people from all walks of life.

Design

The unique design of scissors-glasses allows for a greater range of adjustment than traditional spectacles. The lenses are mounted on two telescopic arms that can be adjusted to fit the wearer's face. This design makes them particularly useful for people with unusual facial features or who require a high degree of optical correction.

Use

Scissors-glasses are used in a similar way to traditional spectacles. The wearer adjusts the telescopic arms to fit their face, and then uses the glasses to improve their vision. They can be used for both nearsightedness and farsightedness, and are particularly useful for people who require a high degree of optical correction.

See also

• Spectacles
• Eyeglasses
• Optical correction

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