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LEA SYMBOLS® Low Contrast Test, 10MTest for quick measurement of low contrast visual acuity at 25%, 10%, 5%, 2.5%, and 1.25% contrast by measuring the distance where the symbols are seen. 10M symbols correspond to visual acuity 0.10 at 1 m, 0.05 at 0.5 m and 0.3 at 3 m. VA values are thus easy to calculate. Test includes a... |
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LEA™ Core Tests Toolkit for Assessment & ScreeningLea Hyvärinen, MD, PhD, has created numerous vision assessment and screening products since designing her LEA SYMBOLS® (apple, house, circle, square) in 1976. Over time, individualized eye chart variations using LEA SYMBOLS® were created for various vision screening programs. Dr.... |
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AAPOS Supplemental Screening KitSpiral-bound, multisided, near eye charts with attached 16-inch cord.Sloan Letters for when children know their letters.LEA SYMBOLS® for preschoolers and for children who do not yet know their letters.Full-Line Threshold and Single-Line Critical Line formats:Threshold screening involves... |
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AAPOS Vision Screening KitThe American Association for Pediatric Ophthalmology and Strabismus (AAPOS) is offering a basic screening kit to assist anyone who screens vision, including school nurses, Lions Club members, Head Start, and medical personnel working in pediatrics and family medicine.The AAPOS Vision... |
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Near/Distance Vision Screening KitNear/Distance Vision Screening Kit with Tutorial DVDThe Near/Distance Vision Screening Kit, which debuted at National Association of School Nurses 2011 to support the Tutorial DVD, provides a portable, lightweight, and user-friendly way to screen the vision of preschool and school-aged... |
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