LEA SYMBOLS® and LEA NUMBERS® Pocket Size Near Vision Cards

LEA SYMBOLS® and LEA NUMBERS® Pocket Size Near Vision Cards
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Product Description

Use of these small pocket cards can help to determine whether a child's visual acuity is within the normal range.

52193 - LEA SYMBOLS® Near Vision Pocket Card: Featuring LEA SYMBOLS®) for screening children at 16" (40 cm). Double-sided. The small size makes it easy to carry or store.

  • One side shows proportionally spaced lines in logarithmic progression with line sizes ranging from 20/400 to 20/10 (6/120 to 6/3) equivalent
  • The reverse side features symbols in 50% spaced rectangles (Massachusetts Visual Acuity Test format) and line sizes ranging from 20/100 to 20/16 (6/30 to 6/4.8)
  • Dimensions: 3.75" x 6.25" (9.5 cm x 15.9 cm)

52281 - LEA NUMBERS® Near Vision Pocket Card: Featuring LEA NUMBERS® for screening children at 16" (40 cm). Double-sided. The small size makes it easy to carry or store.

  • Includes feet, meter, letter, and decimal size equivalents and tightly crowded lines (50% spacing) with acuity lines ranging from 20/400 to 20/10 (6/120 to 6/3) equivalent, 0.05 to 2.00 at 16"/40 cm
  • Dimensions: 3.75" x 6.25" (9.5 cm x 15.9 cm)
Specifications
Assembly Required No
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Warnings
Choking Hazard No
Sterile No