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ID 27358
file
title alternative
Evaluation of the Legibility of Broken Lines for Partial Sight
creator
Kobayashi, Hideyuki
subject
partial sight
low vision
legibility of broken lines
弱視
破線
視知覚
NDC
Psychology
abstract
The present study was designed to investigate the legibility of broken lines for persons with partial sight. The subjects were 10 persons with simulated partial sight, and 4 persons with partial sight. The simulation was obtained using filters and convex lenses. The 30 kind of broken lines was evaluated by the original test that the subjects were read directions of the broken lines in distinction from solid lines. The thickness of lines varied from 0.1mm. to 0.7mm. in 4 steps.

The results were as follows: (1) For all subjects, the conditions of broken lines that the spaces width were 0.5mm and 1.0mm were inadequate for partial sight. (2) The broken lines with wide space were inadequate for partial sight. (3) For subjects with partial sight, adequate spaces width of broken lines were equally and over to Landolt's rings gap that were measured the near visual acuity.
journal title
Bulletin of the Faculty of School Education, Hiroshima University. Part I
volume
Volume 22
start page
99
end page
106
date of issued
2000-01
publisher
広島大学学校教育学部
issn
0387-4850
ncid
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Education
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