Is 20/20 Vision After LASIK a Likely Outcome?

LASIK and 20/20 Vision - London, UK


May 1, 2017 @ 02:00 PM — by csbailey
Tagged with: Lasik |

A woman with her eye being scannedCountless people in London have been able to experience an improved outlook on life thanks to LASIK and other vision correction procedures. LASIK eliminates your need for glasses and contacts, allowing many to see the world free and clear.

Many prospective LASIK patients ask us if LASIK surgery can result in guaranteed 20/20 vision. We'd like to explore this topic in a bit of detail right now.

What 20/20 Vision Means

20/20 vision is often used to describe great vision, yet there's a misunderstanding with regard to what it means. In simple terms, 20/20 vision means that a person can read a line of letters from a traditional Snellen chart that's located 20 feet away.

This sounds like "perfect" vision, though it's actually possible to see better the 20/20. Someone who has 20/10 vision, for instance, is able to read the same line of letters at 20 feet that a person with 20/20 vision could see at 10 feet. Obviously 20/10 vision is rare, but it is possible for people to experience this enhanced vision quality.

How LASIK Surgery Works

Refractive errors are vision issues in which light does not properly focus on the retina, the light-sensitive tissue located at the back of the eye. This results in myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.

During LASIK surgery, a laser is carefully used to reshape a person's cornea. In the process, light is trained to pass through the eyes and focus properly on the retina, enhancing overall vision in the process.

Will I Achieve 20/20 Vision from LASIK?

You might, but it is not a given that you will.

While LASIK is extremely effective at improving people's vision, it does not guarantee 20/20 vision. A number of factors can affect the results of LASIK surgery, including a person's prescription and degree of refractive error prior to LASIK.

Even though a patient's vision may be excellent and he or she may be able to see fine without glasses, the patient may not necessarily be 20/20 vision. The patient could have 20/40 vision instead, which is still good and will not require the need for corrective lenses.

Can I Achieve Better Than 20/20 Vision from LASIK?

Yes, but these instances are rare.

Again, a number of factors will determine the final results of a LASIK procedure. While some patients may achieve vision that's better than 20/20, the majority will typically experience vision in the 20/40 or better rather.

Typical LASIK Outcomes

It is estimated that 56 percent of patients achieve vision that's 20/20 or greater. More than 90 percent of LASIK patients, however, achieve vision of 20/40 of greater. These numbers speak to the overall effectiveness of LASIK surgery, and are the reason why the procedure continues to have such a high patient satisfaction rating.

As LASIK technology continues to evolve, these results may improve with time. Even if the vision quality changes just a bit, the technology at least makes the procedure even safer and more accurate than it was in the past.

Learn More About LASIK

To learn more about your vision options and whether or not LASIK may be an ideal option for you, be sure to contact our eye surgery and vision care centre today. Our entire team looks forward to your visit and discussing these matters in greater detail.