Astigmatism2019-02-06T13:05:59+00:00

ASTIGMATISM
DISTORTED AND BLURRY VISION

What is astigmatism, and can it be fixed?

In the normal eye, the cornea is curved the same in the horizontal and vertical directions, like a football. When the light rays hit the cornea, they focus at a single point.

In astigmatism, the curve of the cornea is not the same in the horizontal and vertical directions. The cornea looks like a rugby ball, with a steep curve on one side and a flat surface on the other.

As a result, light rays entering the cornea do not focus at a single point, causing distorted vision.

How does one get astigmatism?

Astigmatism is a function of the beautiful and infinite variety we see in nature. We see many variations among us, including the shape and size of our eyes. We see astigmatism as a function of this variety. Sometimes, severe forms astigmatism can develop into disease states, like keratoconus, and can further complicate visual issues like a cataract.

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What are some options for treating astigmatism?

How James Ball handles astigmatism treatment depends greatly on what associated conditions the patient presents and the type of treatment we plan.

Astigmatism treatment

We use laser eye surgery (LASIK and ReLEx SMILE ™) to change the shape and curve of the cornea to correct or reduce these types of refractive errors.

With the extensive refractive surgery offered at Custom Vision Clinic, Mr Ball is also able to correct astigmatism with lens replacement surgery. We can achieve this by combining the lens replacement surgery with toric intraocular lenses or limbal relaxing incisions.

Over the last few years, both the measurement of the cornea and the calculations of toric lenses to correct astigmatism have improved. One of the greatest moves forward was the development of the Barrett formula which incorporates the effect of the posterior corneal surface on astigmatism.

Professor Graham Barrett – with whom James worked with ten years ago at the Lion’s Eye Institute in Western Australia – devised this formula. The posterior surface of the cornea can now be measured with several devices, and this is a measurement which we undertake routinely on all pre-operative cataract patients and lens replacement at the custom vision clinic.

At Custom Vision Clinic, we have invested in the cataract module of the Pentacam imaging device to obtain this data. Also, we have invested in the latest version of the Lenstar biometry machine from Haag-Streit incorporating all of the latest software to calculate astigmatism correcting lens implants. The latest software includes the RBF-Hill software and also the Barrett formula. The Lenstar also provides us with an alignment image to ensure accurate placement of the toric lens implant inside your eye at the time of surgery.

Custom Vision Clinic has partnered with several of the lens manufacturing companies so that we can incorporate toric astigmatism correcting lens implants into our routine cataract surgery care pathway without any additional cost to our patients.

Toric astigmatism correcting lenses are not routinely available on the NHS. At other private clinics, patients are charged an additional premium for toric astigmatism correcting lenses.

Results at a glance

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Laser procedures
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Cataract procedures
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Better than the national average of complication rates
My eyesight following the operation is brilliant and better than I thought possible, and this is all down to your excellent surgeon Mr James Ball and not to forget all the very dedicated people around him who make these operations possible.
Keith Garlick
Two of the best decisions I ever made in my life were firstly to have lens exchange and secondly to have Mr James Ball carry out my operation.
Patricia Walton
Within minutes I could tell there was a difference. But now, only a couple of months later, my sight is better than it was seven years ago! I can even read the really tiny print on the car sales ads! If you want that confidence you probably felt when you were younger, this is the ideal solution.  Thanks to the treatment, I feel rejuvenated, independent and much younger!
John Hazelgrave
Many thanks for all your care and kindness. To me it appears a miracle that I can see so well. I feel very grateful. It is impossible to fully express my thanks.
Grace C.
May I offer grateful thanks for your expertise in operating on my eyes. It was intimated to me that you were the best, and from the results I am now enjoying, I am convinced that this is correct.
Jean D.
You are truly innovative. Thank you very much for curing the problems I have been having with my reading and near vision.
Sala M.
My work was becoming almost impossible. I had refractive lens exchange to both eyes with multifocal lens implants last July. I can now see better than 20/20 for distance and can read the tiniest print in newspapers - all without glasses! I have started reading for pleasure again, and I feel that my performance both at work and on the golf course has improved.
John

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My eyesight following the operation is brilliant and better than I thought possible, and this is all down to your excellent surgeon Mr James Ball and not to forget all the very dedicated people around him who make these operations possible.

Keith Garlick

Two of the best decisions I ever made in my life were firstly to have lens exchange and secondly to have Mr James Ball carry out my operation.

Patricia Walton

Within minutes I could tell there was a difference. But now, only a couple of months later, my sight is better than it was seven years ago! I can even read the really tiny print on the car sales ads! If you want that confidence you probably felt when you were younger, this is the ideal solution.  Thanks to the treatment, I feel rejuvenated, independent and much younger!

John Hazelgrave

My work was becoming almost impossible. I had refractive lens exchange to both eyes with multifocal lens implants last July. I can now see better than 20/20 for distance and can read the tiniest print in newspapers – all without glasses! I have started reading for pleasure again, and I feel that my performance both at work and on the golf course has improved.

John

Laser eye surgery has changed my life. Now, having had laser, I wake up in the morning and I can see and it’s unbelievable.

Claire Varley

Laser eye surgery has greatly improved my quality of life. I’ve been able to discard my glasses after thirty years!

Arthur Brown

If you are thinking of having Laser Eye Surgery, try these guys – they really are the best in their field.

Mr CE Poulter

I felt I was treated as an individual and all my questions were answered. From my experiences – I can highly recommend Mr Ball.

Janet Howden

Wonderful, Wonderful, Wonderful! I am so grateful to you and your team. Thank you very much indeed.

Dorothy S.

Thank you for your skilled interventions which have given me my sight back.

Doreen G.

To me it appears a miracle that I can see so well. I feel very grateful. It is impossible to fully express my thanks.

Grace C.

Thank you very much for the treatment you gave me –  I can see so well now, and reading has once again become a real pleasure.

Charles S.

It was intimated to me that you were the best, and from the results I am now enjoying, I am convinced that this is correct.

Jean D.

You are truly innovative. Thank you very much for curing the problems I have been having with my reading and near vision.

Sala M.

I had LASIK on both eyes at Custom Vision Clinics, and can now see better than 20/20, without my glasses or contact lenses. More importantly, I now feel that I can get more out of my busy life.

Karen

At the consultation, Mr Ball found that I had early cataracts. Following cataract surgery at Custom Vision Clinics, I am almost completely independent from glasses.

Anne

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DISCOVER YOUR EYE TREATMENT OPTIONS

GIVE US A CALL ON: 03456430466
OR REQUEST A CALL BACK

REQUEST A CALL BACK

MORE USEFUL INFORMATION

Read more about laser eye surgery

New refractive surgery guidelines from The Royal College of Ophthalmologists, together with patient information on Laser Vision Correction, Phakic Intraocular Lens Implantation, Refractive Lens Exchange and a Checklist for patients will be published in April 2017. Click here for more information

Take this checklist to your consultation with your refractive surgeon performing the procedure. Discuss each item with your surgeon to help you make the decision that is right for you before having
refractive surgery. Click here for more information

The Royal College of Ophthalmologists’ Laser Vision Correction Patient Information booklet (PDF). Click here for more information

Tips for patients interested in laser eye surgery. The road to laser eye surgery can sometimes be confusing. Thinking of the journey as a step-by-step process, from an early interest in laser eye surgery all the way to post-operative care, might make it easier. The following supporting materials will help you learn more about what happens during the process, and answer questions along the way. However, it is recommended to consult with an eye care provider to get more knowledgable of the procedure and to find out whether laser eye surgery might be an option. Click here for more information
Discover how laser eye surgeries differ and compare. The following chart provides an overview of all key facts and figures when it comes to laser eye surgery. While all three Laser Vision Correction procedures have a high success rate, they differ slightly in the refractive errors treated, the treatment method used, and the clinical specifics of each procedure. A doctor or clinic representative can help you understand which procedure is best for your individual eye condition. Click here for more information

SMILE corrects myopia and astigmatism, or a combination of both refractive errors with only a very small incision at the corneal surface. This high-precision procedure is the latest development in the refractive laser treatments. Includes videos, treatment steps, and questions and answers.
Click here for more information

LASIK treats refractive errors by folding away the top layer of the eye and re-shaping tissue underneath. If a femtosecond laser is used, this type of procedure is called Femto-LASIK. Includes videos, treatment steps and questions and answers. Click here for more information

PRK/LASEK procedures remove a thin cell layer from the top of the eye so the laser can reshape the underlying cornea. This surgery may be an option for those who are not eligible for LASIK or those who look for the most economic option for refractive laser surgery. Includes videos, treatment steps, and questions and answers. Click here for more information

Laser eye surgery treatments are clinically proven and established procedures. Like all surgeries, however, laser eye surgery is not free of risks and side effects. Only your ophthalmologist can explain the individual risks and decide whether laser eye treatment is an option. Some complications that can occur are… Click here for more information
Photorefractive (laser) surgery for the correction of refractive errors. Understanding NICE guidance – information for people considering the procedure, and for the public. Click here for more information
Custom Vision Clinic’s YouTube Channel features James Ball answering hundreds of eye-related questions on video – ranging from laser refractive surgery, lens exchange and keratoconus treatment. Click here for more information
Laser eye surgery reviews of Custom Vision Clinic on Trustpilot. Click here for more information

About the author

Mr James Ball | Consultant Ophthalmic Surgeon

MA (Cantab) MB BChir FRCOphth CertLRS

I am a Consultant Ophthalmic Surgeon at Custom Vision Clinic, The Yorkshire Eye Hospital, St James’s University Hospital, and Nuffield Hospital. My major interest is in refractive surgery and finding the best treatment suitable for each patient.

Learn more about me