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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…
Transition from fractions to logarithmic measurement LogMAR values to be used going forward, in accordance with health authority guidelines. LogMAR | Decimal | Fraction (6/6) | Description 0.0 | 1.0 | 6/6 | This is the reference value for normal vision. 0.1 | 0.8 | 6/7.5 | Minimum visual acuity required for a professional driving…
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…
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…
1 ON TURN ON THE VISION CHART 2 OFF TURN OFF THE VISION CHART a 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…
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,…
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…
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…
Optotypes for Children – A Science of Its Own Eye Charts for Children Often Have Serious Flaws An Unregulated Market The market for children’s eye charts is largely unregulated, leading to inaccurate and overly favorable vision test results for children, which can result in missed referrals and lack of treatment. Unfortunately, it is entirely up…
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 ISOeyes,…
It’s That Simple with Eye Charts from Danish ISOeyes: With farsightedness and nearsightedness charts from ISOeyes, you can easily screen for both conditions using the two types of charts: the Distance Chart and the Near Vision Tester in combination. The two charts are precisely calibrated relative to each other, so the only difference in the…
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:…
Units of Measurement Visual acuity does not increase linearly! – but logarithmically – in relation to the size of the visual elements. When testing visual acuity, a logarithmic scale is used to grade the size of the letters or symbols on the chart, so they become smaller and smaller in a logarithmic progression. The logarithmic…
The new guidelines: Measurement units and recording are now referred to as LogMAR: Vision tests on eye charts must be read and recorded using logarithmic values (LogMAR) and not 6/6 or decimal values. Requirements for the physical design of the eye charts: For children aged 3-6: The chart must be calibrated for vision testing at…
The figure is used as an initial screening for the most common color vision anomalies, such as color blindness, where one cannot distinguish between red and green (deuteranopia). The tested person should be able to name the colors. The duochrome red-green test is also a standard tool for determining the eye’s refractive point (refraction). When…
1 TÆND TÆND FOR SYNSTAVLEN 2 AFBRYD AFBRYD FOR SYNSTAVLEN 3 FORØG LYSSTYRKEN TRYK FOR TRINVIS FORØGELSE AF LYSSTYRKEN 4 DÆMP LYSSTYRKEN TRYK FOR TRINVIS DÆMPNING AF LYSSTYRKEN 5 VARMERE LYS TRYK OG HOLD INDE FOR SKIFT TIL VARMERE LYS 6 KOLDERE LYS TRYK OG HOLD INDE FOR SKIFT TIL KOLDERE LYS 7 NIGHT MODE…
