Optometry archive for 2021

Photo showing metal curved component attached to the Preston Frame Rule.

The Preston Rule

27 July 2021 | | Ophthalmology, Optometry, ONLINE EXCLUSIVE ARTICLES

The selection, specification and fitting of a spectacle frame necessitates the recording of certain measurements particular to the frame. These measurements are also essential when it is required to manufacture a handmade spectacle frame. Instruments designed to accomplish this task...