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20/200 to 20/10 size. 22-1/2" x 11" Item #: BC1243 -
A Hand Held instrument to Measure a Maddox Phoria. This tests for anisophorias, vertical and horizontal, in all positions of gaze in real space instead of behind of phropter. Scale from 0 to 10 PD 25mm Item #: BC1211 -
A durable home monitoring test card for those patients needing to detect metamorphopsia. Espically useful with ARMD and PMF. The back of the card contains near point reading material of various type sizes. This allows the patient to monitor possible changes in visual acutiy. The card is made of a washable plastic material. Size 5-1/2" by 8" Item #: BC11980 -
Some doctors prefer the size and feel of these string units over the Bernell ones above. These have Red, Green, Yellow, Blue, and Orange beads. Item #: FR+ -
Both Near and Far come with a single 6 PD stick prism. These cards allow direct measurement of the distance and near phorias in real space or with a phorpter. The patient simple has to tell which number the arrow points to. Any odd number (in yellow) shows esophoria while the even numbers (in blue) shows exophoria. An AC/A can quickly be determined with trial lenses. The reverse side of the near card has a X-Cyl target, and a variety of letter and word targets. Near card is about 12" wide. Distance chart is about 24" wide. Item #: CDHP+ -
Yoked Rotating Prisms (VTE) Adult Size Each comes with case. -
Hamilton-Veale Contrast Sensitivity Test This easy and convenient test can be used to monitor a decrease on the contrast sensitivity function over time. This test also demonstrates the difficulty of seeing in poor lighting or at night. -
All Frisby Stereo Test Present "real depth" objects viewed with natural vision: not testing glasses are required. Each plate has four random-patten squares, with a circle of pattern elements, lying in depth relative to its surround. The depth effect is due to the circle and its surround being printed on opposite sides of the plate. The purpose of the Frisby Screening Stereo Test - Single Plate, is to demonstrate the presence of stereopsis. -
All Frisby Stereo Test Present "real depth" objects viewed with natural vision: no testing glasses are required. Each plate has four random-pattern squares with a circle of pattern elements lying in depth relative to its surround. The depth effect is due to the circle and its surround being printed on opposite sides of the plate. The Frisby Stereo Test has 3 plates allowing for testing stereo acuity disparity as fine as 15 seconds of arc. -
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. -
This much requested Near Acuity Card was originally developed by the American Optometric Association. -
Adult LEA NUMBERS® chart for ETDRS Illuminated light boxes. Fits all existing ETDRS cabinets including both the ESV3000 and ESC2000. LEA NUMBERS® ETDRS chart contains optotypes in proportionally spaced (logMAR) lines; lines range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent, 0.10 to 2.50. Fits in ESV3000 ETDRS illuminated cabinet.
