Frame width
Too wide: If the frame width is too large, the glasses are easy to slide on the face, especially in some light exercise or facial sweat, this situation will be more obvious. At the same time, too wide frames may exceed the facial outline, appear uncoordinated in appearance, and give people a cumbersome feeling. Moreover, the lenses on both sides may exceed the field of vision of the eye, resulting in distortion of the peripheral vision and affecting the visual experience.
Too narrow: The frame is too narrow on the temple area will produce a squeeze, a long time will lead to temple pain, especially in the case of long-term wear, this discomfort will be more obvious. In addition, too narrow frames cannot effectively cover the area around the eyes, and may not be able to completely block the side light and ultraviolet rays, reducing the protective effect of sunglasses.
Leg length
Too long: When the mirror leg is too long, the glasses can not be firmly hung on the ear, easy to slip back, and need to be righted by the hand often, which will bring a lot of inconvenience in daily activities. In addition, excessively long mirror legs may create excess bending behind the ear, causing friction to the skin behind the ear, which may lead to redness and pain.
Too short: The short leg of the mirror will cause the glasses to produce greater pressure on the ears and head, causing discomfort in the ears and head, and even affecting blood circulation. At the same time, because the mirror leg cannot provide enough support, the glasses may slip forward, affecting the stability and comfort of wearing.
Lens height
Too high: The height of the lens is too high may cause the lower edge of the lens to block part of the line of sight, especially when looking down, there will be certain visual obstacles, such as walking, looking at the foot or reading will be inconvenient. Moreover, too high a lens will increase the overall weight of the glasses, so that the bridge of the nose to bear greater pressure, easy to produce pressure and fatigue.
Too low: the height of the lens is too low to completely cover the eyes, can not effectively block the upper light and ultraviolet light, in a strong environment, there may be light from the top of the lens into the eye, causing glare, affecting vision, and can not provide comprehensive protection for the eyes.
Nasal bridge width fit
Too wide: If the width of the nose bridge of the sunglasses is greater than the actual width of the nose bridge of the wearer, the glasses will lack sufficient support, easy to slide, and need to be adjusted constantly. Moreover, because the frames on both sides are not in close contact with the bridge of the nose, there may be light leakage, affecting the shading effect of the sunglasses.
Too narrow: Too narrow the width of the bridge of the nose will cause greater pressure on the bridge of the nose, so that the bridge of the nose pain, especially for people with sensitive skin, there may be indentation and even skin damage. At the same time, this mismatch will also affect the overall stability of the glasses, resulting in the position of the glasses on the face is easy to shift.
Post time: Feb-24-2025