Charlotte Contact Lens Institute

Irregular/High Astigmatism

High/Irregular Astigmatism

Providing Options for Astigmatism, From Mild to Severe

The High and/or Irregular Astigmatism Experts

Where Advanced Technology Meets Compassionate Care

Being told you have astigmatism in one or both of your eyes is nothing to fear. Most people have some degree of astigmatism. Astigmatism usually means the cornea of your eye has an irregular shape that causes your vision to be distorted at any distance. A minor astigmatism may not cause any vision problems at all, but an irregular, or a high amount of astigmatism can have a large impact on your vision and should be corrected.

At Charlotte Contact Lens Institute, we have advanced technology that is specifically designed to help patients with any level of astigmatism, but the most profound benefit of this technology is with those patients who have high levels or an irregular astigmatism.

Looking for More Information on Astigmatism?

Your cornea is a clear, round dome that covers the iris and pupil of your eye. A normal, healthy cornea is smooth and curves equally in all directions, allowing light to focus properly onto the retina at the back of your eye. This is what allows you to see clearly. If your cornea has an uneven curvature, this irregularity leads to improper refraction of light, resulting in blurred vision.

Astigmatism can also occur in the lens of your eye, which sits just behind your cornea. If you’re diagnosed with lenticular astigmatism, it means you have a misshapen lens.No matter what type of astigmatism you have — corneal or lenticular — objects both near and far may appear blurry and distorted.

Moderate or severe astigmatism may also cause eye strain, squinting, chronic headaches, and poor night vision.  Because astigmatism is often inherited, most people who have the problem were born with it.  It can also occur following an eye injury, eye disease, or ocular surgery.

The level of significance of astigmatism is measured in diopters. Diopters are a measurement of the reciprocal of the focal length of the eye. A perfect eye with no astigmatism has a measurement of 0 diopters.

Most people do not have perfectly round eyes – they may have up to .75 diopters of astigmatism, and this is considered normal and will likely not require correction. Between .75 and 2 diopters is considered mild astigmatism. Between 2 and 4 diopters is moderate astigmatism, and 4 or more diopters is considered significant or “bad” astigmatism. Generally, eyes with 1.5 diopters of astigmatism or more require correction.

Small amounts of astigmatism are fairly easy to correct with either glasses or contacts.  For small amounts of astigmatism, many people opt for eyeglasses, which are made with a special cylindrical lens prescription that offsets the astigmatism.

However, moderate to high levels of astigmatism are difficult to fully correct with conventional contact lenses due to the uniqueness of each patient’s cornea. Astigmatism can cause convention contact lenses to rotate, causing discomfort and blurred vision, even with the optimal prescription.  In patients with moderate or high levels of astigmatism, specialty contact lenses tend to be the best option.

Astigmatism affects your vision during all times of day, but can have a particular effect on night vision. Specifically, lights may appear fuzzy or surrounded by a halo, glare, or streaks. For those with astigmatism, it is particularly important that they wear corrective lenses for night time driving.

In the vast majority of cases, astigmatism appears in both eyes. Cases with astigmatism in only one eye are typically the result of an eye injury.

If you have questions about your astigmatism or your eyes in general, we are available for a free phone consultation and can be reached at (704) 800-5230 or

Why Charlotte Contact Lens Institute for
Treatment of High/Irregular Astigmatism? 

The Team

The team at Charlotte Contact Lens Institute have experience with offering myopia management treatment for hundreds of children, and are experts in options for myopia management.

Advanced Technology

Our office is one of a few practices in the country that is equipped with the Pentacam AXL Wave and Optovue Solix OCT, which greatly aid in managing myopia and monitoring progression over time.

Unlimited Answers

We allow for enough time for thorough comprehensive exams, and plenty of time for answering questions. No rushing in and out here.

We Focus on Myopia

Myopia Management is one of our two key focuses of our entire practice. We receive referrals from many different doctors in Charlotte because we specialize in myopia management.

Access to the Doctor

Our doctors are available to answer questions you have after your exam, and will make sure you have the information needed in order to ensure the best possible outcome.


We keep our overhead costs low and offer very competitive prices as a result. We have monthly payment options available and also accept CareCredit™, HSA, & FSA.



Our doctors are nationally recognized for their expertise in utilizing specialty contact lenses, and a common use of these lenses is to treat moderate, high, or severe astigmatism. Our doctors have focused their career on the latest applications and options for fitting specialty contact lenses and they regularly present to other doctors at both local and national meetings.

There are options for managing all types of astigmatism, including highly irregular or extreme astigmatism. During an initial comprehensive exam, the doctor will discuss all available options, including the use of scleral contact lenses for managing severe astigmatism. One of the benefits of visiting Charlotte Contact Lens Institute is the amount of one-on-one time with the doctor, which allows for plenty of time to ask questions and evaluate all options.