What Does 20-20 Vision Mean? How Can Laser Eye Surgery Help?

What does 20-20 vision mean?

 

 

“20/20 vision” refers to normal vision. This is the vision which allows the majority of people to read an eye chart from a distance of 20 feet away. The sharpness of eyesight clarity is measured by an eye chart. A traditional eyechart has a number of randomly accumulated letters that vary in size in no apparent sequence. The term 20/20 indicates the distance in feet from the chart (top number) and the bottom displays the distance from which a person with normal eyesight can read the line.

For example, if you have 20/40 vision, this means you have worse than average vision. When you are standing 20 feet from the eye chart you can read letters that most people see when they are 40 feet away.

Although we may have had 20/20 vision throughout our childhood and younger adult life. The majority of people experience a gradual decrease in the quality of their sight as they reach middle age. Your eyes lenses tend to become less flexible and it becomes more difficult to read items that are in our immediate proximity. This gradual deterioration is known as presbyopia and this condition affects almost 2 billion people worldwide.

A moderate 35% of adults have 20/20 vision without the use of, contact lenses or corrective surgery. With the use of corrective measures, such as laser eye surgery it is possible for anyone to attain perfect 20/20 vision, regardless of their age. The majority of the most common vision related disorders are completely curable with corrective measures. The aim of laser eye surgery is to bring a person’s vision to 20/20. This simple, quick, pain-free procedure is the easiest and most effective manner to achieve 20/20 vision.

How can Laser Eye Surgery help you achieve 20-20 vision?

Laser Eye Surgery the best way to correct your vision to achieve 20/20 vision. The procedure uses a special type of laser to gently reshape the surface of the eye. This simple procedure is used in order to correct common vision related issues such as, near-sightedness, far-sightedness and astigmatism. Over 30 million people worldwide have chosen to undergo this life-changing procedure, to achieve perfect 20-20 vision.

This simple, quick and painless procedure, frees you from a lifetime of wearing glasses and contact lenses. At Optilase, we have performed over 40,000 of these life-changing procedures. Freeing individuals from the inconvenience and expense of a lifetime of wearing glasses and contact lenses. Over 99% of our clients achieve 20/20 vision as a result of this simple procedure. Start your journey towards 20-20 perfect vision today and book your free consultation with Optilase, Irelands leading eye care specialists by calling us on +353 1 223 8821 or simply clicking here.

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At your consultation we will answer all your questions, discuss finance options, and assess whether you are a suitable candidate for one of our life-changing, treatments. Consultations with our expert Optometrists are free and take approximately 1 hour at one of our nationwide clinics.
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Patient Reviews

Margaret Mc Clafferty
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Margaret Mc Clafferty
August 29, 2026

I had LASIK done in Dublin after a consultation and follow up in Derry. From the very start, Elizabeth in Derry put me at ease with her approach. Such a warm, helpful way about her. Surgeon Mikhall Hernandez took the time to meet me in advance to explain the process. All the staff- Iwona, Julie, Jess, Robbie (from Donegal!) and Rachael, I really appreciated the way they supported me from start to finish

Aline Bortolotti Secco
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Aline Bortolotti Secco
July 31, 2026

I had a great LASIK experience at Optilase Carrickmines and couldn’t be happier with the results. Dr. Tom Materman is incredibly kind, attentive, and made me feel comfortable throughout the entire process. I highly recommend him, as well as the whole Optilase team! I didn’t feel anything during the procedure, which was much easier than I expected. My recovery has also been going really well—I’m only on day two, and everything has been smooth so far. Thank you to everyone at Optilase for the excellent care!

Carl Thorne
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Carl Thorne
July 28, 2026

Life changing. From the initial consultation to the aftercare, Optilase have been friendly, professional and caring every step of the way. No worry or concern was too small for a detailed discussion and helpful response. 3 months after my phakic lens surgery my vision is as good as it ever was with glasses without the hassle. Would recommend the Optilase Carrickmines team to anyone.

Colm Smith
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Colm Smith
July 28, 2026

Very happy with the operation, results and the aftercare

Gerard Mcphillips
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Gerard Mcphillips
July 24, 2026

Very professional and appointments on time

D
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D
July 24, 2026

Great team, great experience. Anyone thinking about doing it, do it. Always on the end of the phone if there was any issues. Highly recommend!

jason farrell
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jason farrell
July 23, 2026

The entire process was smooth professional and completely stress free, I couldn't be happier with my outcome

Tara Dowds
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Tara Dowds
July 22, 2026

Excellent experience in the Cork clinic. Dan O'brien explained everything so throughly. I really appreciated the consultation.

Michael Britton
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Michael Britton
July 22, 2026

Absolutely brilliant service from consultation through to surgery and aftercare. The whole team are really friendly and efficient. Would recommend to anyone thinking about getting corrective surgery.

Majella Murphy
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Majella Murphy
July 22, 2026

Excellent service and care. Laser eye surgery went well and have had no issues. Highly recommend Sinead and the team in Optilase Cork

Saidhbhe OShea
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Saidhbhe OShea
July 21, 2026

Highly recommended the team in the cork clinic. Very professional and friendly throughout the whole process.

wiktoria szmerdt
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wiktoria szmerdt
July 21, 2026

Lovely staff, very knowledgeable, made me feel calm and comfortable during my consultation

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