Trusetal
LEA Symbols® Single Symbol Book
Human / Diagnostics / Specialised Diagnostics / Optometry
Product overview
  • With symbols in various sizes
  • Response key and cover included
  • Visual acuity: 0.10 - 2.50
  • Test distance: 3 m
  • Dimensions: 12.7 x 12.7 cm
Application overview
  • To determine the visual acuity threshold in children and adults
Documents to download
Trusetal
LEA Symbols® Single Symbol Book
In stock. Expected delivery date: 00.00.0000 6 pm
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LEA Symbols® Single Symbol Book
LEA Symbols® Single Symbol Book
Fr. 70.25 net
Fr. 83.60 gross
In stock. Expected delivery date: 00.00.0000 6 pm
Product Description

LEA Symbols® Single Symbol Book

The LEA™ Symbols single symbol book is used to determine the visual acuity threshold in children and adults. The book with the different symbols - circle, square, house and apple - is held out to the patient in different sizes and at different distances.


The ring binder book is supplied with a response key and cover. The cover can be used to hide the other symbols on a page.


Product Details

  • LEA™ Symbols Single Symbol Book
  • Determines the visual acuity threshold of children and adults
  • Ring binder with symbols in different sizes
  • Response key and cover included
  • Visual acuity: 0.10 - 2.50
  • Test distance: 3 m
  • Dimensions: 12.7 x 12.7 cm

Apllication

The recommended test distance for this eye test is 3 m. Initially, the patient is shown the large optotypes at a close distance. The distance is then gradually increased.


If the patient's attention decreases, it can be assumed that the visual resolution has reached its limit. The visual acuity threshold is reached when at least three symbols of one size have been named correctly.


Documents to download

Documents to download

Product Identification

Product Identification

Manufacturer: Trusetal

Art. No.: 142433

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LEA™ Symbols single symbol book with response key and symbol cover
LEA Symbols® Single Symbol Book
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