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Lea crowded symbool book by Good-Lite 10 feet #250700
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Description
Lea crowded symbool book by Good-Lite 10 feet
The CROWDED SYMBOL BOOK (#250700) is a variant of the line test for children/adults who cannot concentrate on looking at a line test chart. The symbols are arranged so that the centre symbol is surrounded on all four sides by symbols of similar size. The interaction between the centre symbol and the surrounding symbols is approximately the same as in a line test. The test has a convenient size and is easy to handle when screening or when used during home visits and other similar test situations. It is usually the first line test that can be used to measure visual acuity of a young, visually impaired or amblyopic child thus revealing the effect of crowding.
The CROWDED SYMBOL BOOK (#250700) is a variant of the line test for children/adults who cannot concentrate on looking at a line test chart. The symbols are arranged so that the centre symbol is surrounded on all four sides by symbols of similar size. The interaction between the centre symbol and the surrounding symbols is approximately the same as in a line test. The test has a convenient size and is easy to handle when screening or when used during home visits and other similar test situations. It is usually the first line test that can be used to measure visual acuity of a young, visually impaired or amblyopic child thus revealing the effect of crowding.
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