Spectacles of Truth

Coloured Spectacles

British Standards for Spectacles.

EARLIER articles have reviewed parts of the work of the British Standards Institution in the field of standardization of spectacles (Brit. J. Ophthal., 1956, 40, 611; 1959, 43, 509), but the publication of B.S. 3521, completing the series of Standards relating to spectacles, provides the opportunity for a general survey. The nine British Standards fall into two categories with some overlap. The...

Origin of spectacles in India.

The European records of the origin of spectacles are very controversial. The suggestion that spectacles were first invented during the I 3th century in Italy by an unknown layman of Pisa is not convincing, because there are also references to spectacles in Hindu literature at about the same time. In the life of Vyasaraya (1446-1539), written in Sanskrit by his contemporary, the poet Somnath, th...

Russell’s Logicism through Kantian Spectacles

Are their spectacles really necessary?

an experienced ophthalmic optician, I am also the Scottish representative of the British College of Ophthalmic Opticians and chairman of the National Optical Consultative Committee. The main defect in your editorial lies in the assumption that '80-90% of the prescriptions' for the 516 wearers of supposedly unnecessary spectacles out of 13 800 school children aged 10 years or less 'have been iss...