The important parameters for optometry and lens fitting are refractive power and pupillary distance. When wearing large-frame cheapest eyeglasses, it is particularly important to consider the parameter of pupillary distance.
The distance between the centers of the two lenses should match the distance between the pupils, otherwise, even if the degree is correct, wearing glasses will still cause discomfort and affect vision.
Large-frame glasses not only enhance your appearance but also have a certain impact on your eyes due to the large size of the lenses. Large-frame glasses are heavy, and if worn for a long time, they may cause symptoms such as eye fatigue or numbness between the nose bridge and eye sockets due to compression of the nerves. People who wear large framed glasses can easily have their glasses fall off if they lower their heads or shake their heads slightly.
The degree of glass lenses varies in different areas! Generally speaking, the degree at the center of the lens is slightly lower than the degree at the periphery of the lens. And our pupil focusing is based on the center point of the lens. If we often wear glasses with large frames, they may slide down due to their weight, causing the pupil focusing to be unable to align with the center point of the lens.
Which one do you choose for eye appearance? High-quality eyeglass online frames, please match them: lightweight, the lighter the better. A lightweight frame can reduce pressure on the nose, comfortable!
Not easily deformed is a very important frame that is easily deformed not only affects its service life but also affects the correction effect of vision. If the frame is of poor quality, it is prone to delamination and color fading, which directly affects the service life of the frame. So the eyeglasses online frame should be of the best quality.
