Rare Thomas young optometer, France, circa 1805-1820

Rare Thomas young optometer, France, circa 1805-1820




Country of manufacture


Categories: Medicine, Diagnostics, Spectacles


A very rare Thomas Young optomter, the first optometer made for determining the eye’s state of focus, making it possible to prescribe appropriate correction lenses.

The present example is unsigned but French and circa 1805-1820, before the generalization of the metric system, as suggested by the engraved phrase: “N[umer]os des verres en pouces [number of the lenses in [French) inches]”.

Young optometer is the first modern optometer invented, first presented by Young in 1801 during The Bakerian lecture “On the mechanism of the eye”.

This French example is in good and genuine condition : the optics works well and there is no restoration.

The optometer measures 3,5 diameter and 30-53 cm lenght.

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FR Le Zograscope

Established by Alexandre Piffault in 2014 and based in Paris at 5 rue de Condé, 75006, very close to Odéon, Le Zograscope specializes in antique and rare books in Science, Medicine and Technology, and rare antique instruments in the same fields. We have especially a strong interest in early and continental microscopy, early and special mathematical/drawing instruments, medical and surgical instrument, and rare technology.
Personnal website : https://www.lezograscope.com/

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