// Workers AI · dad joke modeWhat did Gandhi glasses say? "I see a specs of truth.

Mahatma Gandhi's glasses in the National Gandhi Museum

Gandhi glasses (also known as Windsor glasses, John Lennon glasses, tea glasses when tinted, or round granny glasses) are a type of eyeglasses characterised by circular or nearly circular eyerims and a thin metal frame.

The Windsor style was produced in Britain by the 1840s. Traditional Windsor glasses have round frames, a saddle bridge over the nose, and temples extending from the midpoint of the frames.

In popular culture

Notable people associated with Windsor glasses include John Lennon (and thus the glasses are sometimes referred to as "John Lennon glasses"), who first wore them on the set of How I Won The War in September 1966. A pair of his Windsor glasses were auctioned for $56,800 in 2020.

Other notable people who wore this style include Mahatma Gandhi. The National Gandhi Museum in New Delhi holds the spectacles that Gandhi last wore.

The fictional character Harry Potter, Groucho Marx and Theodore Roosevelt also sometimes wore Windsor glasses, although they are better remembered for their horn-rimmed Groucho glasses and rimless pince nez, respectively.

Ozzy Osbourne wore blue tinted teashade glasses as a tribute to John Lennon. The colored lenses were also useful for concealing the wearer's bloodshot eyes after a night of drinking. GLCO marketed a range of Ozzy themed glasses after his death in 2025.

• 
  Mahatma Gandhi
• 
  Groucho Marx
• 
  Theodore Roosevelt

Practical considerations

The minimalist nature of Windsor glasses presents some pragmatic advantages over other styles.

Glasses that have eyerims with a particular customised shape may be subject to vendor lock-in, where the only company able to manufacture new lenses for a given frame is the same company from which that frame was purchased. In contrast, the circle is a basic geometric shape and so it is in the public domain. This means that glasses with circular eyerims made from one brand may be compatible with the lenses made by many other brands.

Eyeglass lenses were historically made of glass and had to be ground against an abrasive surface to fit the shape of the eyerims. Getting the lens to fit an irregularly shaped eyerim required skill and specialised equipment. The simplicity of carving a circle meant that circular lenses were generally cheaper to produce. Modern lenses are instead made of plastic and can be made to any shape with ease.

The thin frame requires less metal, and therefore costs less to produce, although the corollary of this is that Windsor glasses are more easily broken if crushed.

See also

• Browline glasses
• Cat eye glasses
• Horn-rimmed glasses
• Rimless eyeglasses
• Bug eye glasses