Electronic refraction provides a fast, comfortable means of testing your vision. The process takes only about five minutes but tests every available lens combination to accurately determine what type of corrective vision you require.
A phoropter works by having you view an eye chart through the device, which is digitally controlled. As different lens combinations are presented, you tell us which ones provide better vision until the correct combination is arrived at. The benefit of the phoropter’s digital control is that adjusting comparisons between lens combinations happens very quickly and can also be compared against your current prescription lenses to determine the amount of improvement you’ll see.
The test relies on your feedback to us, as you’ll be asked whether each new combination of left and right corrections improves your vision. As the test progresses, it may become difficult to distinguish between two similar lens combinations, but that’s actually an indicator that we’ve found the appropriate range of correction, and a final combination can be chosen based on your input and our recommendations. We’ll use the electronic refraction test results in combination with your symptoms and overall examination to identify the best options.
Please be sure to bring your current glasses in at the time of your examination so that we can scan their lenses for use in the phoropter examination. It’ll help us and you make a more accurate comparison between them and your new prescription.