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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Patient Reviews

Julie Kelleher
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Julie Kelleher
June 17, 2026

Life changing experience with optilase. Its been 6 months since my surgery and have no problems since day 1. The Cork clinic were outstanding from my very first consultation up until now. I have recently been discharged and have now 20/13 vision which i have been told is better than 20/20 vision which is absolutely insane as before I was -6 in each eye. Don't hesitate make that call to get the consultation. You won't look back 😀

Jamie Commins
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Jamie Commins
June 15, 2026

Very good

Brahim Bouya
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Brahim Bouya
June 12, 2026

Best decision I’ve made, highly recommend Optilase! My journey with Optilase actually started over a year ago with a free consultation. Due to the curvature of my eyes I wasn’t eligible for LASIK, but rather than turn me away, the team referred my results to the surgeon for advice and recommended I return in 12 months to check my vision was stable. That level of care and thoroughness from the very start really set the tone. A year later I came back, passed all the tests, and was approved for PRK. Every step of the process was explained clearly, the optician was precise and even gave practical tips like taking Omega 3 supplements to support recovery. On the day of surgery (30th April), I was nervous, but the team were incredibly reassuring from the moment I walked in. There were multiple checks, a detailed pre-op conversation with the surgeon, and a video walkthrough of the aftercare drops. By the time I went in, I felt fully prepared. The procedure itself took less than 2 minutes, I felt nothing. The technology is seriously impressive. Over a month on, my vision is transformed. It’s genuinely one of the best decisions I’ve ever made. If you’re considering laser eye surgery, don’t hesitate and don’t hesitate to choose Optilase.

Aoife C
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Aoife C
June 12, 2026

Good experience, reassured during procedure and understood risks and all steps along way

Renata Gomes
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Renata Gomes
June 2, 2026

I couldn't finish the process without leaving a review for this amazing team. Thank you all for helping me see so clearly without needing glasses. This month marks 3 months since I had LASIK, and it has truly been life-changing. Wearing glasses always bothered me because I enjoy sports, and even contact lenses were often uncomfortable. The whole journey started with Clare Hegarty at South William Street. Thank you so much, Clare, for your care and attention. As a Senior Optometrist, you gave me hope. At first, the process seemed almost too easy, which made me a little nervous, but it turned out to be one of the best decisions I have ever made. Thank you as well to Thomas Materman. Your clear, simple, and direct explanation of the procedure made me feel comfortable and confident throughout the process. Thank you to the entire Optilase team. Three months later, it feels as if I never had surgery at all—except that I can now see perfectly. I have experienced no negative side effects, and I am delighted with the results. I highly recommend Optilase to anyone considering LASIK surgery.☘️☘️☘️

Blaithin Cox
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Blaithin Cox
May 30, 2026

Couldn't be happier with my experience of the Lasek eye surgery. I had consultations in St William Street and surgery in Carrickmines, staff in both clinics were friendly, professional, and excellent staff their job. I would recommend Optilase to anyone considering laser eye surgery.

Anne Beakey
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Anne Beakey
April 29, 2026

Staff are lovely here and provide a great service

Shane Guihen
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Shane Guihen
April 20, 2026

Couldn't recommend highly enough, everyone I dealt with, from the initial consultation, to the surgery and the after care were absolutely top class and a pleasure to deal with

Katie Corcoran
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Katie Corcoran
April 13, 2026

Excellent service. I found optilase really great to deal with- they were so professional and well organised before and during the laser eye surgery. They were also very friendly and the aftercare was great.

Roisin Mitchell
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Roisin Mitchell
April 7, 2026

I had a great experience and Optilase getting laser eye surgery, it was without a doubt the best money I ever spent and wish I did it years ago! I rave about it to anyone who'll listen. From my initial consultation to the surgery itself in Dublin and the aftercare in Galway I couldn't rate it highly enough. The staff were so professional, informative, friendly and attentative throughout the whole process. Extremely happy customer!

amnnau
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amnnau
April 3, 2026

Got my PRK surgery with optilase couldnt be happier! I was cared for in each step even post surgery, give me a call or message if you need referral

Amy Phelan
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Amy Phelan
April 2, 2026

Had such an amazing experience with Optilase in Cork. Such a brilliant team, they all made me feel so relaxed and explained everything so well. They reassured me so much on the day of my surgery, and I never felt rushed with any questions. I would highly recommend Optilase to anyone even considering laser eye surgery. I am the most nervous and skeptical person and it’s truly the best thing I ever did, there is honestly nothing to be worried about!! I had zero pain whatsoever and my vision was clear by that evening and 100% perfect the next morning, it’s truly amazing! Wish I got it done years ago. I have so much freedom now without contact lenses or glasses, it’s so hard to believe my vision is fixed!!

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