When you have generated 3 consistent tests you'll be shown your EyeQue Refractive Measurements (ERM). This means that your tests have high precision to them. This means that you have a very tight cluster of results as in the diagrams with high precision below.
In the example above, accuracy refers to the closeness of a measured value to a standard or known value. Precision itself is independent of accuracy. You can be very precise, but very inaccurate as shown in the image above. The higher the combined accuracy and precision the higher the confidence level will be. If the combined accuracy and precision are low (example 1), no ERMs will be displayed. E that have a precision that is very high or high accuracy will be displayed. The ideal ERMs have both a high precision and high accuracy. This means that if you're taking the test incorrectly, but at a consistent rate, then you may receive ERMs that are not suited for you. It's best to have measurements that you can compare your results to or to speak with a customer service representative if you feel that your results do not seem right for you. If you ever want to get a better understanding of your testing results, you can tap on the "individual tests" button on the EyeQue application to see what your individual tests look like.
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