Together with the continuing development of prescription glasses, increasingly more different designed eyeglass frames have grown to be available. Normally, frames could be split up into three different types – full rim, semi rim and rimless. A lot of people may question which frame type is way better whenever they prepare to buy the prescription glasses at shops or online retailers. Actually, each frame type possesses its own features.
Full rim eyeglasses, also referred to as “hide-a-bevel” eyeglasses. May wish to the most original eyeglasses and also the most popular and used designs. They encircle the prescription lenses completely; hold the lenses tightest, and in addition intended for the thinnest prescription lenses. The full rim eyeglasses frames do an adequate job of avoiding the edges with the lenses exposed; they are the good option for people who have strong prescriptions.
Semi rim eyeglasses frames, also known as “grooved” frames, only cover half the prescription lenses. There are nylon strings or liners running over the bottom in the prescription lenses to support the lenses, so the semi rim frames are lighter than full rim frames. Of these frames, when we assemble the prescription glasses, we should instead cut grooves into the prescription lenses edges. That is why, the thicker lenses are required for the semi rim eyeglass frames in order to not chip and crack.
Rimless eyeglass, as the name implies, don’t have any rim. The lenses are joined by the nose bridge along with the temples are joined on the lenses on the other half ends. The rimless rim eyeglass are the lightest eyewear. These are timeless since they are very easy, consequently look confident and versatile. But due to there’s no rim all around the lenses providing sufficient protection, they’re least durable. Additional, the rimless eyeglass frame put extremely high level of force on the prescription lenses, so it’s recommended that CR39 lenses needs to be avoided to work with, and index lenses with better durability are recommended such as polycarbonate lenses.