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Optokinetic Drum - Adult White with Black Stripes Accurately test for acuity when rotated 8 to 10 RPMs at different reading distance. 10" long and 8" diameter. Item #: DAL300 -
CRT Card Test Specifically designed for computer operators who require corrective multi-focal eyewear. Card may be placed at different heights and distanced to simulate the complete computer screen. Card is printed two sides -one side shows a computer screen with AOL. The other (Pictured) shows a Microsoft Word document with different fonts. Simulates a 15" computer monitor with shiny screen. has intentional errors to show red/green highlights. -
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. -
Two mirrored sides septum, frontally and non-symmetrically set, is recommended for binocular training; antisuppressive and fusional activities; central-peripheral instrument applied in amblyopia. Easy to teach figure-ground, therapy and brain injury neuro-optometric rehabilitation (neglect). -
Stainless steel handles and a red filter on a stick are held in a felt lined case for convenience as well as scratch protection. Item #: ASPSSET+ -
A.) "COMPLETE BAR" Includes prisms: 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40 & 45 B.) "EXTENDED BAR" Includes prisms: 1, 2, 4, 6, 8, 10, 12, 15, 20 and 25. C.) "BETTER BAR" Includes prisms: 1, 3, 5, 10, 15 & 20. D.) "GOOD BAR" Includes prisms: 3, 5, 10, 15 & 20. Item #: AHB+ -
Six-piece set includes: 2D,3D,4D,5D,6D and 8D flippers. Professional training with two prism pairs. Beginning with the highest powers through which a patient can fuse and focus, prism flippers are exchanged for next higher powers through the training sequence. GREAT FOR BEGINNING PRESBYOPES WHO HAVE EXO WITH THEIR BIFOCALS! All flippers have corrected curve lenses and come in a deluxe black carrying case. Save money with this kit! Note: Prism diopter powers are listed per lens. For example, a 4PD flipper will have two 4PD lenses to make a 8PD range. So, 4PD flipper = 8PD range. Item #: BC1275SETCC -
Farnsworth Test for Congenital and Acquired color defects. The Farnsworth D-15 contains a reference disc holding notation 10 B 5 4 and fifteen numbered discs which make up an incomplete color circle. The patient arranges the discs and then evaluation of the patients arrangement separates 'normal' color perception from moderate and strong defects in deutan, protan or tritan axis color discrimination. The disks are spread out on a table and arranged by the patient. The Farnsworth D-15 test is a subset of the well known Farnsworth 100 Hue Test. It is intended for classification instead of in-depth study of color vision defects. The D-15 and 100 hue tests are correlated. Growing Importance of Color deficiency Screening: In addition to congenital color deficiency screening there is growing evidence that adult acquired color deficiency, especially in yellow and blue perception, can indicate medical toxicity and other problems. Increasingly complex security and medical systems also require verification of all three types of color receptors. How the D-15 test works: The Farnsworth D15 is called 'dichotomous' because it is designed to separate subjects into one of two groups, 1) Strongly color deficient or 2) Mildly color deficient or color normal. This is accomplished by the arrangement of vivid (saturated) colored discs. A perfect score shows normal color perception. A non-perfect score is used to determine a medium or strong color deficiency. -
Features both upper and lower case letters to test near visual acuity in low vision patients. Appropriate starting high plus add power or magnifier power is indicated to the right of the line of copy the patient is able to read. -
Bernell Red/Green Random Dot Variable Tranaglyph Square, Circle and Triangle Targets Now you can train using high levels of binocular skills. This slide can allow those with high amounts of esophoria or exophoira to experience random dot 3-D pictures for the first time. Use with our R/G flipper and get even more flexibility in training. (*Pictured with Sided Holder, not included) -
7-1/2" x 5-1/2" Non-Variable Polarized vectograms ensure testing and training at actual distances. Vectograms stabalize fusion and steropsis, eliminate suppression and develop simultaneous vision. Used in monocular, binocular, pursuit and saccdic training, vectograms help correct and prevent anomalies involving projection and hand-eye coordination. Ideal for use with Bernells Dual Polachrome™ Trainer -
This test can be used with infants, children and adults with low cognitive abilities when communication difficulties prohibit the use of optotype tests to measure visual acuity. This test measures an individual's ability to detect the presence of parallel lines of decreasing width to provide information about the function of some parts of visual pathways. Item #: GF1300
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