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Bjerrum's Screen Chart
OPTOMETRIC INSTRUMENTS
visual field test recording chart
W. & C.
Europe: United Kingdom
Post 1959
paper
overall: 203 mm x 218 mm

Scotoma chart printed in red at a scale of 3mm to one degree, on single piece of square-shaped white paper. (Four loose copies).


2021.63

Gift of Mr John Dixon Salt FCOptom, 2020



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