%0 Journal Article
%T The use of the illumination scale for the detection of small errors in refraction and in their correction
%J Journal of experimental psychology
%D 1920
%A Ferree, C. E.
%A Rand, Gertrude
%V 3
%N 4
%P 243-256
%X This paper discusses the relation of the illumination scale to the detection of small errors in refraction and in their correction. Topics include: (1) astigmatism (without a cycloplegic); (2) irregular astigmatism; and (3) astigmatism (with cycloplegic). (PsycINFO Database Record (c) 2012 APA, all rights reserved)<p />
%G 
%I American Psychological Association
%@ 0022-1015
%U http://dx.doi.org/10.1037/h0068559