1. Low Vision Assessment Tools & Methods: Putting Together Your Low Vision Kit MAER Conference Michigan Chapter Dorothy Goldie Addison March 22, 2013

2. Phase One AreaItemSourceCost DISTANCE VISIONOriginal Distance Test Chart f/t Partially Sighted Designs for Vision OccludersBernell/ Vision Assoc6.95 - 9.50 Handheld close-focus telescopes 4X & 6X Bernell/LS&S43.95 - 110.00 NEAR VISIONLighthouse Near Acuity Chart (Sloan letters) Good-Lite25.00 Trial lensesGulden Ophthalmics10.00/ea (120.00) Lens holder- 4 wellsBernell19.50 Magnifier- 4X dome- 76mm LS&S45.00 EYE USAGEWorth 4-DotBernell16.25 Stereo FlyBernell/Vision Assoc165.00 – 179.95 r/g reading unitsBernell8.95 VISUAL TRACKINGK-D Test for ReadingKing-Devick45.00 Bright Line Reading GuideAPH7.50 COLOR VISIONFarnsworth D15Bernell/ Vision Assoc150.00 – 184.95

3. Phase Two AreaItemSourceCost DISTANCE VISIONLEA Symbol BookBernell/ Vision Assoc45.95 Additional handheld close- focus telescopes 3X & 8X Bernell/ LS&S40.00-110.00 NEAR VISIONLEA Playing CardsVision Assoc27.00 Additional magnifiers- -Eschenbach lighted Makrolux -Eschenbach Easy Pocket Eschenbach 235.00 125.00 Reading stand- Grand Stand APH47.00 EYE USAGE3-Figure TestBernell/ Vision Assoc36.50-48.00 Red/green flipperBernell8.25 VISUAL TRACKINGDEM Developmental Eye Movement Test Bernell88.50 VISUAL PERCEPTIONMVPT Motor Free Visual Perception Test Bernell128.95 COLOR VISIONColor Vision Tests- Ishihara/Wagoner/Improv ed Good-Lite Bernell/ Vision Assoc99.95-149.95

4. Phase Three AreaItemSourceCost DISTANCE VISIONGrating Paddles orBernell/Assoc186.95 – 211.95 (Teller Cards)Bernell(1995.00) NEAR VISIONLEA Pocket-sized Near Vision Card Vision Assoc11.50 VISUAL PERCEPTIONTVPS Test of Visual Perceptual Skills Bernell149.95 CONTRAST SENSITIVITYLEA Low Contrast Flip Charts Vision Assoc90.00

5. Sources APH-- http://shop.aph.orghttp://shop.aph.org Bernell-- www.bernell.comwww.bernell.com Designs for Vision-- www.designsforvision.comwww.designsforvision.com Good Lite-- www.good-lite.comwww.good-lite.com Gulden Ophthalmics www.guldenophthalmics.com www.guldenophthalmics.com King-Devick-- http://kingdevicktest.comhttp://kingdevicktest.com LS&S-- LSSproducts.com Vision Associates-- www.visionkits.comwww.visionkits.com

6. Distance Visual Acuity Grating acuity

11. Distance acuity Optotype acuity

15. Vision Simulators

16. Visual Acuity Simulators Use plus lenses to create level of blur: 20/70 +1.50 20/100 +2.00 20/200 +3.00 - +2.50 20/400 +4.00 - +4.50 20/600 +5.00 - +6.00 20/800 +6.00

17. Visual Field Simulators

18. Near Visual Acuity

29. 2 each: +1.00 +2.00 +3.00 +4.00 +6.00 +8.00

30. Trial Adds If grade level material is in a smaller font than the functional print size, trial adds are indicated. Consider the range of add generally prescribed for the student’s distance acuity level. Provide practice/demonstration for the student in how to use the trial lenses, slowly finding the clearest image while adjusting the distance from the text.

31. Visual acuitySeatingPower of TSPower of near add 20/70 range5-6 feet2-3X+2.00D 20/100 range4 feet3-4X+2.00 -+3.00D 20/200 range3-4 feet4X+4.00 - +5.00D 20/300 range2 feet6X-8X+6.00 - +8.00D (2X MS) 20/400 range1 foot 3X MS

32. Eye Usage/ Depth Perception

39. Visual Tracking

40. Fixation Targets

42. Advantages of K-D Test Simple to administer, requires little time to administer Uses digits (usually well-learned) vs alphabet or words

43. 2 5 8 0 7 3 7 9 4 6 5 3 1 6 4 7 9 7 3 5 1 5 4 9 2 6 5 5 7 3 3 1 8 6 4 5 3 7 5 2

44. 3 7 5 9 0 2 5 7 4 6 1 4 7 6 3 7 9 3 9 0 4 5 2 1 7 5 3 7 4 8 7 4 6 5 2 9 0 2 3 6

45. 5 4 1 8 0 4 6 3 5 9 7 5 4 2 7 3 2 6 9 4 1 4 5 1 3 9 3 4 8 5 5 1 6 3 1 4 3 5 2 7

47. Compare time it takes for student to complete each subtest as compared to same age peers. Note nature of errors, if any. If slower than peers or errors occur, vary format of test or introduce strategies to determine whether any are helpful. – Large Print subtests – Use of a line marker (Bright Line Reading Guide) – Use of finger-pointing strategy – Elevation or re-positioning reading material

48. Bright Line Reading Guide

49. Visual Tracking or Automaticity?

51. DEM Vertical Subtests

52. Visual Field

53. Color Vision

57. Visual Perception

60. Other Items Retractable measuring tape Paper samples Wind-up toys Lighted toys Toys with light and sound- cause & effect