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Astigmatism 1
Astigmatism 2

What is Astigmatism?

Astigmatism is a common eye condition. It is usually caused by the presence of a non-uniform shape to the cornea, with the cornea being more or less steeply curved in particular areas (meridians). The development of abnormalities in the natural lens inside your eye may also cause or contribute to astigmatism.

Normally, the combined refractive properties of the cornea and crystalline lens focus light rays sharply on the retina of your eye. In astigmatism, the lights rays of an object come to focus non-uniformly (a-stigma) in two planes. If short-sightedness (myopia) or long-sightedness (hypermetropia) are also present, the planes may be focused in front of or behind the retina, resulting in blurred vision.

  • Blurred vision for distance, intermediate and near vision
  • Headache after prolonged activities that require visual attention; this is often caused by partially closing the eyelids, as this tends to improve the vision
  • Increased difficulty with night vision, as the enlarged pupil at night-time tends to induce ‘night myopia’

The cause of astigmatism is not fully understood. Genetic factors are considered to play an important role and astigmatism is well known to run in families. High levels of astigmatism can be present in infancy, but it then declines rapidly during development and remain stable in childhood.

Astigmatism and other refractive errors can be diagnosed by your optometrist (optician) or eye doctor. The examination involves a refraction in order to assess the refractive status of the eye.

In the presence of moderate to high levels of astigmatism, a corneal topography scan may be indicated to exclude the presence of keratoconus; this scan maps the shape of the cornea in order to ascertain whether its shape is regular and thus normal. A rapid increase in myopia and astigmatism can also be a sign of keratoconus, a progressive condition in which the cornea becomes weaker and bulges forward; this requires further investigations.

Astigmatism 3
Vision blurred for objects at both short & long distances.

Astigmatism Correction


How can astigmatism be treated?

Treatment options for astigmatism include glasses, contact lenses and refractive eye surgery.

  • The vast majority of patients with astigmatism use glasses to see better. With moderate to high prescriptions however, glasses can be difficult to adjust to and may reduce the quality of vision with peripheral distortion.
  • Specialised soft toric and rigid gas permeable contact lenses can be used to treat astigmatism as the contact lens compensates for the difference in refractive power across the cornea. Contact lenses also correct co-existing long sightedness or short sightedness at the same time.
  • A more permanent solution to astigmatism can be provided by refractive surgery. Depending on your prescription, eye measurements and visual needs, a variety of procedures are available, including LASIK, SMILE, toric phakic IOL, e.g. ICL, and refractive lens exchange.
  • Laser eye surgery is an excellent treatment modality that reshapes the cornea. In LASIK, excimer laser sculpts the cornea to make its surface and refractive power uniform, correcting the astigmatism. If you have astigmatism and also wear reading glasses, LASIK can incorporate a PRESBYOND blended vision treatment to reduce or eliminate your need for reading glasses. SMILE is a keyhole alternative to LASIK that uses femtosecond laser to reshape the cornea; no flap is created in SMILE, preserving better biomechanical stability of the cornea and allowing a more rapid return to intense physical activities and swimming than with LASIK.
  • A toric Implantable Collamer Lens (ICL) is like a permanent plastic contact lens that is implanted inside your eye, in front of your natural lens. No one can see this phakic lens and you cannot feel its presence in your eye. It is a safe alternative to LASIK and SMILE, but it is usually reserved for higher prescriptions when laser eye surgery may not be the best option.

Excellent 5-Star Patient Reviews

We're rated excellent on Trustpilot & average 5-stars on Google, Doctify and TopDoctor for the outstanding service we provide before, during & after treatment.

Hannah Gough
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An absolute dream
Aris and team made the whole procedure from start to finish an absolute dream. All questions answered in a language that anyone could understand, more detail given when requested. Calming even during the procedure. Appointments ran fairly late, so could go outside of work hours and travel. Everything was efficient, didn't have to chase, they handled all the faff around COVID like champs. Don't forget to enter your reg number on arrival to the hospital though!
Julie House
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My whol experience has been superb
I am today the morning after having completed presbyond surgery and I am absolutely delighted. The actual surgery was nothing to worry about and is completely pain free. I have spent my first night with slightly fuzzy vision and mildly gritty eyes but this really was the only side effect. This morning I opened my eyes to vision better than I can ever remember and on having my first check with Mr. Anderson it was confirmed I have 20/20 vision.
Victoria Lewis
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The ‘Gold Standard’ of laser eye surgery
Mr David Anderson is one of the leading Consultant Ophthalmologists which is why I chose him to perform my surgery. During the consultation I was very much assured that I was in good hands, but also having the ‘Gold Standard’ of laser eye surgery. It was explained that my best option was LASEK due to an eye infection rendering me contact lens intolerant. This also left me with a slightly reduced tear film... read more.
Anna Blackman
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I now have better than 20/20 vision
From start to finish, Mr Anderson and his team were wonderful!! Mr Anderson always took his time, explained every clearly and was happy to answer any questions. I now have better than 20/20 vision - and no more glasses 🙂 I would recommend Mr Anderson to anyone looking into laser eye surgery!
Lynn Farley-Rose
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I wish I hadn't waited so long
Following an injury to my cornea that never healed properly, I had phototherapeutic keratectomy. At all stages I have had the chance to ask plenty of questions and have been given balanced information. The procedure itself was done with great efficiency and professionalism from both the medical and nursing staff. Aftercare has also been good and I am entirely satisfied. I only wish I hadn't waited so long to have it done!
John Waterman
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Cannot recommend enough
The process was completely painless and quick. Any concerns you have to do with treatment whether it be the treatment itself, the aftercare... Dr Anderson will explain in detail and with patience. Also your are looked after so well by the nurses just before and after your treatment, they honestly couldn't do more to help you feel comfortable and relaxed. You are booked in for follow up treatments after your surgery and you feel like they really do care about how your eyes are and how much better your vision is, which is an incredible difference ,you feel like you aren't just a customer who they want in and out.
Graham Charlesworth
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I have been thoroughly impressed
I have been thoroughly impressed with the level of care and professionalism that Aris and his team have shown at all stages in the process. The initial assessment, the procedure itself and then follow-up consultations. Although this was something that I approached with much trepidation I am really happy with the way that it ended up and the path that I followed.

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