Aspheric eyeglass lenses are designed with advanced optical technology which gives them the flatter curves, a slim and attractive profile. As for the conventional lenses, the front surface is spherical; the usually curved surface as of a baseball. The center curvature of the lens all the way to outer edges follows a complex structure with aspheric lenses. Find out more below;
A leaner outline
High-indexing is another factor specifically associated with ‘aspheric lenses’. The design and high-index lens in collaboration create a material that’s noticeably slimmer, lighter and thinner than traditional glass and plastic lenses. Lean outline for almost all prescription is the key factor for aspheric lenses but the dramatic difference is in the result which significantly contributes to correcting farsightedness.
When consulting an ophthalmologist in Dubai for the treatment of hyperopia or farsightedness, he’s likely to prescribe them with convex or “plus” lenses having a thinner edge and a thicker center. The greater/stronger the prescription, more would be the central bulge from the frame. Since aspheric eyeglasses are crafted with flat-most curves, less would be the bulging from the frame thus giving wearer/user a slimmer and more attractive profile.
This way, those having a strong prescription gets to choose from a variety of frames without worrying about the lens being too big. As for the eyeglasses for the correction of myopia (near-sightedness) which usually have an opposite shape such as thinner center and thicker edges which is why aspheric lenses have the less dramatic effect but still complements sufficiently to aesthetics and correction to myopia.
There’s always some distortion with conventional lens design which can be noticed when you look away from the center like gazing to the left, right, above or below. Aspheric glasses significantly reduce or completely eliminate the distortion which contributes to the wider field of view and improved peripheral vision.
More natural view
The flatter curves of these lenses mean they can be fitted closer to your face which is a huge benefit when actually wearing the glasses against a strong prescription. With conventional spherical lenses and a strong prescription for farsightedness, they cause unwanted magnification which makes the object appear larger and closer than actual.
Unfortunately, this magnification goes both ways which mean user’s eyes would appear unnaturally magnified referred to as “bug-eyed” appearance. With aspheric lenses, all unnecessary magnification and reduction are corrected thus contributing to a more natural look.
Aspheric designs also come in single vision lenses for the treatment of near and farsightedness as well as astigmatism. For presbyopia, these are available in bifocals, progressive lenses, and trifocals. Though most of the aspheric lenses are crafted from high-index compounds, they’re available in regular plastic too. Technological advancement further introduced photochromic lenses and its inclusion in aspheric eyewear line.
Frame selection is important with aspheric lenses for proper adjustment on the face as well as aesthetics. Your immediate eye doctor or ophthalmologist in Dubai would definitely help you in choosing the appropriate frame and lens so always consult first.