What is the difference between spherical and aspheric contact lenses?

What is the difference between spherical and aspheric contact lenses?

What is the difference between spherical and aspheric contact lenses?

An aspheric lens has varying curvature across the surface of the lens rather than a uniformly spherical shape. On the other hand, spherical contacts conform to the shape of the cornea and add to the spherical aberration present in the eye, due to the natural shape of the cornea and crystalline lens.

Can I wear aspheric contact lenses?

It is best to ask an ophthalmologist, if you suffer from an eye disease. He or she will determine whether your eyes are suitable for wearing contact lenses at all. Generally, ophthalmologists do not recommend wearing aspheric lenses if your hyperopia has been corrected by laser eye surgery.

Are polycarbonate lenses aspheric?

Since aspheric lenses are a specific design or shape and not a type of material, you can get high-quality polycarbonate or even Trivex lenses that are aspheric. These can offer improved visual acuity. The biggest pitfall with aspheric lenses is their cost.

What are the advantages of aspheric lenses compared with standard lens curves?

They have a more attractive profile because there is less curvature. This means they don’t have the same “coke bottle” look as you get with traditional lenses. Aspheric lenses have a more complex front surface with a gradual curve. They also perform better by improving the way light refracts onto the retina.

When should I use aspheric lenses?

The long answer: Individuals with strong farsighted prescriptions should choose aspheric lenses if they are concerned about the bulging appearance of the lens or the magnification of their eye. But aspheric lenses aren’t just in prescription eyeglasses, they are available in reading glasses, too!

How much do aspheric lenses cost?

How Much Do Aspheric Lenses Cost? Prices for aspheric lenses vary a lot. They start at approximately 100$ per lens and go up to 400$. You need always to have a look at the whole package.

Who needs aspheric lenses?

Are aspheric lenses better than polycarbonate?

Aspheric lenses can be made in many lens materials. Getting regular high index lenses is a better middle ground for thickness, light weight, and lack of eye distortion compared to getting aspheric polycarbonate lenses. The lenses will be similar in weight and quality, but high index is more scratch resistant.

Do aspheric lenses reduce magnification?

The advantages: 1. Aspheric plus lenses reduce magnification for a more natural appearance, and 2. Traditional lenses in high-plus powers cause the wearer to look directly in the lens center for good vision. High-plus aspheric lenses minimize off-center errors, so patients can see without turning their heads.

Are aspheric lenses worth it?

Aspheric lenses are worth it if you enjoy an optimal visual experience and your prescription is higher than 4 diopters. There are several aspects to look at in which they are worth it.

What is aspheric w ar?

With aspheric eyeglass lenses, thin is in. Advanced optical design technology allows aspheric eyeglass lenses to be made with flatter curves than conventional lenses, giving them a slimmer, more attractive profile.