All About Wavefront Technology

Imagine light traveling in the form of a bundle of rays. Drawing lines perpendicular to the tips of this bundle of beams will yield an end product known as a wavefront map. An eye with a perfect vision produces a perfectly flat wavefront. On the other hand, an imperfect eye reveals an irregular wavefront. The distortions acquired by wavefront as it travels through a patient’s eye offer valuable information about the current vision errors and how to correct them.

What Is Wavefront Technology?

Also called aberrometry, this technology measures the way a wavefront of light goes through the refractive elements of the eye, namely the cornea and the crystalline lens. The distortions that occur as light travels through the eye are referred to as aberrations. As already stated, these distortions represent particular vision errors.

Wavefront technology helps diagnose both lower and higher order vision errors. This type of technology is found at eye care providers such as Crown Vision Center.  Lower order aberrations are common vision errors like farsightedness, nearsightedness, and astigmatism. Higher order aberrations entail vision errors that are more complex than lower order ones, such as coma, trefoil, and spherical aberration.

What Are The Benefits of Wavefront Technology?

In the past, conventional eye examination methods can only help diagnose and treat lower order vision problems. Because of this, eye care professionals ignored higher-order aberrations due to the lack of technology to identify them correctly. There was also a common belief that high-order aberrations only have a slight impact on the patient’s vision.

Today, higher order aberrations have become an essential factor in eye exams. Credit goes to wavefront technology due to its ability to accurately define and correct complicated vision errors using new types of contact lenses, spectacles, intraocular lenses, as well as refractive surgery.

Eye care professionals noticed that higher-order aberrations are responsible for visual side effects after LASIK and other forms of refractive surgery. Thus, these complex vision errors received increased attention in recent years. The most recent wavefront-lead lasers that doctors use in vision correction surgery have the potential to minimize particular higher-order aberrations. This technology will go a long way in improving visual performance even for low-light activities, like driving at night.

Additional benefits of wavefront technology:

I.  It gives room for a more customized procedure because it takes care of the distinct anatomy of each eye.

II.  A patient may benefit from high-definition vision due to its ability to correct visual errors which the conventional methods of eye treatment (such as contact lenses and glasses) cannot guarantee.

III.  It is now possible for many people who didn’t qualify for LASIK to undergo this procedure.

Risks of Wavefront Technology

Wavefront technology is associated with less serious side effects compared to those of conventional LASIK surgery. You are less likely to suffer from starbursts, halos, and impaired night vision.

What are the Procedures Involved in Wavefront Technology?

An eye care professional uses an aberrometer to obtain wavefront diagnosis. The process entails:

I.  Positioning your chin on the chin rest.

II.  Peering into the device and focusing your eyes on the point of light at the request of the guiding professional.

III.  Note that the person examining your eyes will not require you to provide any feedback.

IV.  He or she will obtain your wavefront map in a few seconds.

Your wavefront map is a complete and accurate description of all your vision errors. Your eye doctor will utilize the map as a blueprint to customize your vision correction. It will help him/her determine whether you need a refractive surgery, contact lenses, spectacles, or intraocular lenses.

If you are about to undergo this test, always remember that it is fine not to get a perfectly flat wavefront map. Achieving a perfect wavefront map is impossible. There is not a single person in the world who has perfect eyes or vision.