Translucent acrylic screening chart with reversed letters and optional illumination box
Kay Letter Test 6m Acrylic Mirrored LogMAR Chart / Light Box
The Kay Letter Test 6 Metre Acrylic Mirrored LogMAR Chart provides 6 Sloan letter optotypes in LogMAR sizing and Snellen equivalent sizes from 0.8 to -0.2 LogMAR (6/38 to 6/3.8 Snellen). The letters are reversed to be used with a mirror placed at three metre distance. The six letters have been carefully chosen to provide similar legibility with the need to differentiate similar shapes. This also gives the option to use a matching card if required.
Sizes 0.3 to -0.2 have 5 letters per line, giving the option to assign a LogMAR acuity score to each letter for the best repeatability. The LogMAR and Snellen scores provided on this chart are specific for a six metre test distance used with a mirror at three metres. If you use this chart with the mirror at a different distance the scores will need to be adjusted accordingly. See our Visual Acuity Conversion Chart.
The Kay Letter Test 6 Metre Acrylic Mirrored LogMAR Chart fits a standard large Evans illuminated LED light box and four-sided rotating test type.
From the drop-down menu above, you can choose to purchase the chart together with the Evans light box, light box with carry handle or light box with a wall bracket.
The lightweight LED illuminated box holds a single vision testing acrylic panel and has a spotlight below the panel. A manual side switch will select which section is illuminated. It comes with a 12V medical power plug and 2 metre lead to the right side of the unit. The box is white in colour and can be wall-hung, or stood on its feet plus integral stability bar. The LED illumination strips should last for 30-50,000 hours. Replacements can be fitted by the manufacturer.
This standard size acrylic chart will slide up for easy replacement, if required.
Country of origin: GB
Disconnect the light box from mains!
This unit may be cleaned by wiping with a damp cloth and a weak solution of detergent/disinfectant. Please note, alcohol-based cleaning fluids should NOT be used.
Input: 100-240v/AC, 50-60Hz, 160-80mA
Output (to Evans unit): 12v/DC, 600mA, 7.2w
Due to the weight of the product there is an additional shipping cost of £12.00 for deliveries within the UK. Overseas charges may be higher.
Country of origin: GB