The process of optometry is quite procedural, and there are also many things to pay attention to. There is a simple way to judge whether best place to buy eyeglasses optometry is good, and see if it will give you foggy vision.
Fog vision, in simple terms, is the artificial creation of a myopic state with the aim of relaxing the eyes, so that the subsequent optometry results will be more accurate.
The end of the foggy vision is to perform refractive power testing. By using a refractive analyzer to obtain the refractive map of the eye, combined with subjective refraction data, one can more accurately understand the appropriate degree of glasses.
Next, comprehensive optometry will be performed using a comprehensive optometry instrument, LCD visual acuity chart, and refractometer. The refractometer here is used to detect the degree of old glasses and the UV protection level of the lenses, as a reference for selecting new discountglasses and lenses.
Several aspects of the entire optometry process can determine whether it is comprehensive. You can pay attention to whether there is fog vision before the optometry.
Have you had full correction? Simply put, it's about the maximum correction. The most common practice is to correct it to 1.0, but it may not be suitable in some cases, such as when there is a large gap between the two eyes.
Have you adjusted your eye height and best place to buy eyeglasses asked about your work and eye habits. Pupil height is a parameter that determines the vertical position of the pupil in the frame.
Because the frame is worn horizontally on the face, the horizontal distance is basically fixed due to the constraints of the face. The displacement can be directly calculated, and the vertical position is not so convenient. Only after wearing the frame can the vertical position of the pupil be observed, which is called the point pupil.