Wavefront Guided LASIK Surgery
Wavefront LASIK Surgery – The Way It Works
To understand how wavefront works, you’ll want to appreciate how the eye focus light. A perfect cornea allows light entering the eye be focused evenly throughout the pupil and then fine tuned by the eye’s natural lens so that the light rays fall correctly on the retina.
Small defects in the eye cause a bit of light to travel through the eye at various angles. It’s these defects that causes the light to hit the retina in different spots. As a result, you might experience problems like star bursts or ghosting, glare or halos of visuals.
Wavefront precision measuring devices generate a” map” of your eye. This wavefront map is quite detailed. instead of providing a general outline like the map of a country, it is comparable to a topographical map recording every fine dip and curve. In fact, you could hear wavefront LASIK described as a “fingerprint of your eye,” because it measures micro, subtle variants within the eye that are as distinctive as a fingerprint.
Measuring your eye with wavefront engineering before carrying out LASIK can help your ophthalmologist enhance the outcome of surgery, resulting in fewer visual side effects and enhance quality of vision by utilizing the specialized process, instead of the classic process.
Measuring for Wavefront LASIK Surgery
Your ophthalmologist will map both of the eyes using a wavefront scanner, called an abberometer or analyzer. This device makes a highly accurate , in depth map of light rays as they travel through your eyes, highlighting defects with your eyesight.
With your chin on the chin rest of the abberrometer, you’re told to focus beyond what is labeled as a target light. To ensure correct measurement is captured, be sure to stare past the target light, not right at it. Your eyes focus must be as relaxed as they possibly can.
A precisely targeted beam of light is sent through your eye and focused on the retina. A sensor then measures the irregularities in the wavefront pattern of the light as it emerges from your eye as the wave of light rays is reflected back from the retina eye’s lens, pupil, vitereous and cornea.
A wavefront map of an eye with visual defects looks curved or deformed because a number of light rays reach the retina before others strike varying points on the retina. Wavefront diagrams indicating distortions could look like anything from a potato chop to an egg crate. In contrast, the wavefront map of an eye without any visual errors will display a flat surface since all the light rays will travel evenly through the eye.
Using measurements, the wavefront computer will create an precise, three-dimensional map of your eye’s visual system and including distinct defects within the cornea. The wavefront data will be used to program the excimer laser, allowing ones ophthalmologist to customize the shaping of your cornea.
The Benefits Of Wavefront Technology
Wavefront – guided LASIK doesn’t just correct the eyes nearsightedness, farsightedness or astigmatism – much as glasses, contacts or conventional refractive surgeries do – it reduces the possibility that higher-order aberrations may lead to glare, poor night vision, halos or blurry images after surgery. Higher-order aberrations are distortions in your vision that can’t be corrected with contacts and glasses and can be only measured exclusively utilizing wavefront analysis.
One of the primary For individuals with big pupils, especially under dimly lit conditions, like evening or night, quality of vision is often much better.
Wavefront-guided LASIK is not suited for all individuals. Even with wavefront-guided LASIK, vision after surgery may not be perfect due to individual differences in healing after laser surgery. The ideal LASIK patient 21 or older, since refractive error is more likely to change in patients younger than this. Individuals older than 21 still experience changes in refractive error, making them not an optimal candidate for LASIK.
Only an experienced Ophthalmologist can determine if you are a good candidate for wavefront LASIK surgery. If you are a candidate for this surgery, you will join a growing amount of people who are enjoying a higher quality of corrected eyesight.