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Lea Symbols - Measurement of Visual Acuity - Instructions - Testing Visual Acuity of Children
ARCHIVAL ITEMS
instructions
Lea Test Ltd; Precision Vision
North America: USA, Illinois, Villa Park
1990s
paper
overall: 280 mm x 216 mm

Instructions for a series of paediatric test charts using LH symbols. A4 format printed in black and white on four pages of white paper, folded. Includes instructions for testing near vision and distance vision and a definition of the Visual Acuity Threshold.


2015.479

Gift of Miss E. S Gould, FCOptom and Dr Michael Crossland, MCOptom, 2014 in memory of Janet Silver



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