Landmark 280 – Do you or someone you know wear glasses? If so, it’s very likely that you’ve benefited from the Lensometer. The Lensometer is used primarily by optometrists and opticians to identify and to verify eyeglass prescriptions.
• Before the invention of the Lensometer, optometrists determined eyeglass power through trial and error
• The first Lensometer successfully marketed on a commercial scale was the Wellsworth Lensometer in 1921
• Modern commercial lensometers are no more accurate than the Wellsworth Lensometer introduced over 100 years ago
Learn more about its history here: https://bit.ly/3KE6TV1