The author provides evidence for a method of calculating the allowance for deviation from the prescribed spacing on centres in the spectacles. Shows that values of the limit deviations obtained by the method described is compared very favourably with those employed today.

Download full-text PDF

Source

Publication Analysis

Top Keywords

allowance deviation
8
[method calculation
4
calculation allowance
4
deviation fixed
4
fixed center-to-center
4
center-to-center spacing
4
spacing eyeglasses]
4
eyeglasses] author
4
author evidence
4
evidence method
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!