With respect to spectacle frame itself, it is basically three factors: material quality, craft detail and design.
Material: mainly divided into metal, plastic and other materials. The best metal material is titanium, pure titanium, B titanium or titanium alloy. Titanium has the advantage of being relatively light, stable and not easily oxidized. It is not easy to weld after the solder joint is broken. Some other metal glasses are actually good, mostly stainless steel, electroplated and reprocessed. Plastic is a common type of plate, this material is heavy, texture, temperament, good color, not easy peeling, insufficient is the metal hinge by external force easily damaged. Another common plastic material is TR90, which is used in many light-looking and dazzling glasses in Korean dramas. However, TR90 is easy to peel and break. Other materials include wood and bamboo, but they are not mainstream.
Process details: you can listen to whether the sound of hinge opening and closing is smooth, see the finish of the picture frame, whether the plating surface is even luster, LOGO is engraved or silk screen printing. If you think you will not identify, you can go to a professional eye hospital to choose brand frames.
Design: including brand concept, style, style and color, each collection interprets a different style, can be selected according to their own personality, temperament and dress style.
Choose eyeglass frame additionally, which points need to pay attention to?
Comfortable: The frames need to feel comfortable after they are put on, not pressing on the ears, nose or temples, and not too loose.
Lens distance: As the name implies, is the distance between the lens and the eye, usually 12MM. If the lens is too far away, people with myopia may not see clearly, and people with hyperopia may have too much diopter. The opposite is true if the lens is too close.
Rake Angle: under normal circumstances in 8-12 degrees, if the rake Angle is too large, the lower edge of the lens may touch the face, it will be difficult to see close, may also cause the lens distance is too large. If the rake Angle is too small, it will lead to a narrowing of the field of vision at a distance and difficulty in seeing close up. At the same time, too much or too small rake Angle is not very beautiful.
Frame width: the closer the geometric width and pupil distance of the frame is, the better, so as to retain more optical precision area in the field of vision, and reduce the deformation and difference of objects around. So want to match large frame glasses myopia patients need to pay attention to, the pursuit of fashion at the same time may sacrifice is the quality of vision, the most common symptoms are wearing glasses on dizziness, peripheral vision deformation.
Post time: Apr-07-2022