Learn more about the sense of vision and the inner eye – watch video
CE marking is no guarantee that your eye chart is correctly manufactured!
CE marking is no guarantee that your eye chart is correctly manufactured! Eye charts fall under medical devices class 1, and for class 1 equipment, it is solely up to the manufacturer to indicate whether the product meets quality requirements and guidelines for the correct execution of the eye chart. CE marking is therefore not…
Logmar explained
What Are the Advantages of Switching to Using the Logarithmic Scale as a Measurement Unit in Vision Tests? A LogMAR Eye Chart (Logarithmic Minimum Angle of Resolution) is designed to enable a more accurate measurement of visual acuity than other methods. If vision test results are to be consistent and comparable, health authorities recommend the…
How to Measure Your Child’s Vision with the LogMAR Scale
Screening of Children – the New Thresholds for Referral (LogMAR). Normal vision in children and adults is defined as 6/6 vision or decimal 1.00. The Danish Health Authority’s current guideline on “Preventive Health Services for Children and Adolescents” states that children should be referred to an ophthalmologist if the vision test result is worse than…
Practice vision charts
Here you can view, download, and print practice charts for children, and we recommend showing them to the child/test subject before the actual test on the vision chart. We have created practice charts for the 3 types of Optotypes: Eyekey, Similar, and Wekey. Eyekey Eyekey Download PDF – versions Eyekey-swedish Eyekey-spanish Eyekey-norwegian Eyekey-italian Eyekey-german…
Remote control for the ISOeyes eye chart
1 ON TURN ON THE VISION CHART 2 OFF TURN OFF THE VISION CHART 3 INCREASE BRIGHTNESS PRESS TO INCREASE BRIGHTNESS STEPWISE 4 DECREASE BRIGHTNESS PRESS TO DECREASE BRIGHTNESS STEPWISE 5 WARMER LIGHT PRESS AND HOLD TO SWITCH TO WARMER LIGHT 6 COOLER LIGHT PRESS AND HOLD TO SWITCH TO COOLER LIGHT 7 NIGHT MODE…
Height Placement of the Eye Chart
Place the Eye Chart Correctly to Get Accurate Vision Test Results If all eye charts were calibrated the same and had the same dimensions, and we humans were all the same height, a vision chart could always be placed at the same height and distance from the test subject, whether a child or an adult,…
Get exactly the frame for your eye chart that matches the clinic’s style and image
Make Your Eye Chart Stand Out For a modest additional cost, you can get a chart that fits the style and image of your clinic. Why should everything be white or gray? ISOeyes produces a chart according to your taste, without compromising on quality and standards. For all 4 sizes of LED panels, we can…
Particularly vision charts for children can still be misleading
It is not only the English figure chart from Kay Pictures that, according to recognized research, produces overly favorable vision test results compared to the reference chart from Landolt C (according to ISO 8596). The same is true for the Østerberg chart, which has been widely used in Denmark for decades. “Two out of three…
ISOeyes eye charts are calibrated according to the dimensions of the clinic room
Individualized Testing Distance? – We’ve Got You Covered! If the best placement of the patient in the clinic room is 3.5 meters from the eye chart, why not have an eye chart solution calibrated for testing at that exact distance? This way, no post-test calculations are needed. The measurement results will be accurate! At…
The History of the Development of the Modern Vision Test
Visual Function Scales Related to Visual Acuity The measurement of visual acuity starts with defining the stimulus parameters: symbol size and viewing distance. The reference standard for size was defined by Snellen; the term “M-unit” was coined by Sloan. The reference standard for distance is the meter and its inverse, the diopter. Based on these…
ISHIHARA visual color eye test
Color Vision Test with the ISHIHARA System The 38 ISHIHARA Plates Download the overview: Danish version PDF International version PDF Plate 1 Everyone should be able to see the number 12. Plate 2 Normal vision: 8 Red-green deficiency: 3 Plate 3 Normal vision: 6 Red-green deficiency: 5 Plate 4 Normal vision: 29 Red-green deficiency:…