Products

/Products/
  • Lea Symbols & Numbers Near Card
    This cards combines a LEA Symbols® line test on one side and a LEA Numbers® line test on the opposite side. Proportionally-spaced lines from sizes 20/400 to 20/10 (6/120 to 6/3) equivalent. Attached 16-inch (40cm) cord ensures proper testing distance. Response key printed on test card. Flash cards and instructions included. 8" x 10" (20.3 cm x 25.4 cm).
  • Lea Numbers 13 Line Trans Distance Chart
    Proportionally spaced (logMAR); line sizes range from 20/125 to 20/8 (6/38 to 6/2.4) equivalent, 0.16 to 2.50. This chart can either be wall mounted or used in an ESV1200 or Model A+ illuminated cabinet. Includes response key, training cards, and instructions. 10 feet/3 meters testing distance
  • Lea Symbols 15 Line Folding Distance Chart
    Lea SYMBOLS® 15 Line Folding Distance Chart For screening or testing individuals beginning at age 2 1/2. Proportionally-spaced lines; line sizes range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent. 50% spaced rectangle (Massachusetts Visual Acuity Test format) with line sizes from 20/100 to 20/8 (6/30 to 6/2.4) equivalent. Has a hole for hanging the chart on the wall.
  • Lea Symbols Book with Crowding Bars
    Handheld vision test with LEA Symbols pediatric symbols features 50% spaced contour interaction bars to provide single optotype acuity with the proper crowding effect. Optotype line sizes from 20/100 to 20/20 (6/30 to 6/6) equivalent. This book can also be used for vision testing of illiterate adults or geriatric patients. Includes response key, flash cards, and instructions. 17 pages. 4" x 4" (10.2 cm x 10.2 cm).
  • Lea Symbols Near Vision Card
    This test assesses a child's functional vision at near distances. Can also be used to familiarize child with testing procedure before introducing a distance test. Proportionally spaced (logMAR) lines on one side and more tightly- spaced symbols on the opposite side. Line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent, 0.05 to 2.00. Response key printed on test card. Includes training cards and instructions. Card measures 8" x 10" (20.3 cm x 25.4 cm).
  • Lea Symbols Pocket Near Card
    Pediatric near vision card featuring LEA Symbols pediatric symbols for testing children or illiterate adults at 16" (40 cm). It's small size makes it easy to carry or store. Front side contains 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 pediatric symbols in 50% spaced rectangle (Massachusetts Visual Acuity Test format). Line sizes range from from 20/100 to 20/16 (6/30 to 6/4.8).
  • Lea Symbols Single Symbol Book
    The Single Symbol Book is ideal for people who cannot perform when tested with a line test. This book can help determine the best resolution of the visual pathway in a child/adult with amblyopia or impaired vision. Single optotype line sizes from 20/200 to 20/8 (6/60 to 6/2.4) equivalent.
  • Lea Symbols and Letters Projector Slide
    Designed for use in manual Chart Projectors including products from: R.H. Burton, Marco, Reichart, Topcon, and Woodlyn. Includes test for: → LEA Symbols® 20/100 – 20/10 (18 Lines) → LEA Numbers® (16 Lines) (Multiple Lines 20/50 – 20/10) → Sloan Numbers 20/100 – 20/10 (16 Lines) (Multiple Lines 20/50 – 20/10) Item #: VA3203
  • Lea Symbols Numbers and Letters Projector Slide
    Designed for use in manual Chart Projectors including products from: R.H. Burton, Marco, Reichart, Topcon, and Woodlyn. Includes test for: → LEA Symbols® 20/100 – 20/10 (18 Lines) → LEA Numbers® (16 Lines) (Multiple Lines 20/50 – 20/10) → Sloan Numbers 20/100 – 20/10 (16 Lines) (Multiple Lines 20/50 – 20/10) Item #: VA3202
  • Lighted MagnifoldLighted Magnifold
    The MJ-50 LED Lighted MagniFold™ from Carson Optical represents the latest in Handheld Magnifier design. Its rectangular lens is shaped for the way you naturally view things, and a collapsible handle locks into any of three different positions for the most comfortable alignment. Fold the handle flush for easy storage. The MJ-50 Lighted MagniFold™ magnifier is 2x power with built-in LED illumination. US Patent D629,433; European Patent 001236046-0001
  • Loose Risley Prism (Pair)
    Fits into the standard 38 mm eyewell of the Bernell-O-Scope or any standard trial lens frame. Each prism yields 20 PD for a total of 40PD. Now you can set any amount of BI, BO, or vertical prism into the stereoscope to do training procedures. May be used for distance training by removing the cardholder. Item #: ARPHH20
  • Loose Risley Prism 20 (Single)
    Fits into the standard 38 mm eyewall of the Bernell-O-Scope™ or and standard trial lens frame. Each prism yields 20 PD for a total of 40PD. Now you can set any amount of BI, BO, or vertical prism into the stereoscope to do training procedures. May be used for distance training by removing the cardholder. It may also be used with the new Bernell 3-D videos. Item #: ARPHH20S