🔒 ¿Para qué sirve este test rojo verde?

At Vita Óptica we use a wide variety of tests to measure the visual health of our clients, and many times you ask us questions about what each test is or what it is for. You already know that in each consultation we try to explain everything in depth and we never have problems in solving your queries. But for all those who have left you with doubts we will talk about some of these tests in the blog. Today it is the turn of the bichromatic test or better known among users as a red-green test. What is the purpose of this test? What does it tell us to experts in optics and optometry? Discover it! What is the red-green test The red-green test is very useful to know if a person is hyperopic or myopic, or even to know if the lenses he uses are well graduated. The basis on which this test works is the "chromatic aberration". That is, the phenomenon by which the eye focuses differently on the wavelengths of red light and green light. In cases where there is myopia the red color focuses better on the retina, and when there is farsightedness this happens with the color green. Do you want to know more about it? Take a look at what the Youtube Optician tells us in this week's video, it sure solves all your doubts. In our view you can find many different tests, and we always offer complete and detailed reviews with which to analyze every aspect of the health of your eyes. If you have ever seen any of these tests and you did not know what it was or what it was for, do not hesitate to leave us your questions in the comments or on social networks. We will respond gladly! Welcome to Youtube's optics and optometry channel. I am here to advise, explain and guide you if you need any help related to the world of vision. I work in an optician's office in Valladolid (SPAIN), here I leave the link to my page so you can take a look http://www.vitaoptica.com In the channel we will have advice, UNBOXING news, explanations with criteria and many collaborations of experts in this sector so that nothing escapes us. If you wear glasses or contact lenses, most of the videos that I will be hanging are for you. Short videos, simple to understand, with many tricks and helps to solve once and for all your eye doubts ;) Do not hesitate to subscribe to the channel if you want to know when I upload the videos since in some of them I will upload free downloadable material and in others I will make some EXTRAORDINARY RAFFLE We are seeing each other and do not forget to subscribe to my social networks Thank you!! "Music: www.bensound.com"