LEA NUMBERS NEAR VISION CHART - 40 cm Designed to measure visual acuity using a standard line test and three tests with lines spaced respectively by 50%, 25% and 12.5%; they reveal difficulties in seeing narrow, closely spaced details clearly. Chart dimensions: 20,3x25,4 cm. 1 piece.
Designed to measure visual acuity using a standard line test and three tests with lines spaced respectively by 50%, 25% and 12.5%; they reveal difficulties in seeing narrow, closely spaced details clearly. Chart dimensions: 20,3x25,4 cm.
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