What did Josef Dallos do at 18 Cavendish Square?

Cavendish Square Standing before this elegant Georgian townhouse in one of London's most refined squares, you're looking at the birthplace of modern contact lens practice in Britain. It was here, from 1937 to 1964, that Josef Dallos established the world's first clinic dedicated exclusively to fitting and prescribing contact lenses—a revolutionary approach at a time when most ophthalmologists dismissed them as impractical curiosities.

Having already invented his groundbreaking living eye impression technique in 1930, Dallos chose this prestigious Mayfair address to legitimize his innovation, transforming a private townhouse into a beacon for patients desperate to abandon their thick spectacles and embrace a radical new vision of sight. For nearly three decades, this address became a pilgrimage site for the visually challenged from across Europe and beyond, cementing Dallos's reputation as a visionary who could see—quite literally—what others could not, and making 18 Cavendish Square the quiet epicenter of an optical revolution that would eventually change how millions of people see the world.

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