Astigmatism

the word astigmatism in bold

A normal cornea — the clear front covering of your eye — has a round curve, like a basketball. However, many people have an irregularly shaped cornea while others have an irregularly curved lens. Both cases can cause light that enters the eye to bend the wrong way, causing blurry vision. This disorder is called astigmatism.

If an abnormally shaped cornea is causing your astigmatism, it’s called corneal astigmatism. Lenticular astigmatism is the term used for astigmatism caused by an irregular lens.

If you have corneal astigmatism, your cornea is shaped more like a football. The curvature of your cornea is probably uneven, with some areas being flatter or steeper than other areas.

Often, astigmatism occurs in conjunction with other vision conditions, such as farsightedness or nearsightedness. All three of these conditions involve errors in the way the cornea and lens refract, or bend light.

Causes

Both children and adults can suffer from astigmatism. In minor cases, they may not even notice a change in vision. While this condition is usually present from birth, it can change over time.

Astigmatism may also develop after eye surgery or an injury. In rare cases, a condition called keratoconus causes astigmatism. This means the cornea becomes thinner and more cone-shaped over time, leading to increasingly poor vision.

Diagnosis

When you get a comprehensive eye exam, your doctor tests for astigmatism. She or he will measure how your eyes focus light. To determine the curvature of your cornea, the doctor uses an instrument called a keratometer. It focuses a circle of light on the cornea. This allows your doctor to measure the reflection and determine the proper fit of contact lenses, if you opt for this treatment option. If your doctor wants even more details, she or he can use a special video camera to map your cornea’s surface. Other instruments measure how your eyes focus light.

Treatment

Wearing eyeglasses is the safest and simplest way to treat astigmatism. Both glasses and contact lenses correct this disorder by altering the way light enters the eyes.

Orthokeratology is a non-invasive procedure involving a series of rigid contact lenses. Worn under your doctor’s careful supervision, you can use these to gradually reshape your corneal curve. However, if you stop wearing these specially designed lenses, your corneas will return to their former shape.

Refractive surgeries, such as LASIK and photorefractive keratectomy (PRK), change your cornea’s shape by using a laser to remove a tiny amount of corneal tissue.

If you suffer from blurry or elongated vision, you might have astigmatism. Call us today so we can schedule an exam and get you on the road to clear vision.

Location

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Hours of Operation

We are closed for lunch daily from 12:00 PM to 1:00 PM

Brier Creek Vision Care

Monday:

8:00 AM - 5:00 PM

Tuesday:

8:00 AM - 5:00 PM

Wednesday:

8:00 AM - 5:00 PM

Thursday:

8:00 AM - 5:00 PM

Friday:

8:00 AM - 5:00 PM

Saturday:

Closed

Sunday:

Closed

Testimonial

  • "Excellent office. Staff is helpful and polite when dealing with my special needs child. They understand when he needs break and how to redirect to another technique to achieve goal. Would highly recommend to others!"
    Jennifer, Raleigh, NC
  • "I needed an eye doctor to see me for my concussion issue that effected my eyesight. There isn't many who are able to assess. Dr. Durham knew just how to work with my case in a gentle manner to help keep me calm. I finally have hope for healing now."
    Elizabeth 3/15/19 - Answer to Prayer
  • "Dr Durham is amazing. She takes the time to hear the patient and is extemely knowlegable."
    Susan 3/16/19 - Amazing
  • "All the staff were very helpful & Susan Durham was very thorough & professional"
    Jill 3/14/19
  • "Dr. Durham and her staff are the best and most knowledgeable dealing with brain injuries. Highly recommended!"
    Kristina 3/11/19 - Absolutely the best!
  • "Thought exam was personal, deteilrd and fully explained. Staff were prompt, kind, snd professional. I’d recommend Dr. Durham’s clinic to anyone needing eye care."
    Thomas 3/10/19
  • "The staff was very polite and extremely patient with my condition. Very specific about my condition and caring to help me recover. We will have a long road to recovery together."
    Elizabeth 3/11/19
  • "Didn't have to wait. Very thorough eye exam."
    Sandy 3/7/19 - Great eye checkup
  • "My visit was more than I could of asked for. I told my friends about my visit to the future. Dr. Dunham was extremely knowledgeable, concerned and determined to get it right, Her staff seemed to respect her greatly. staff was trained very well and gave me the confidence they knew what they were doing.
    I have already told my friends about my visit to the future."
    Patricia 2/24/19 - Everything was perfect.
  • "My daughter and I have have had great experiences at Brier Creek Vision! Dr. N. Is fantastic!! The office staff is super friendly, accommodating and very pleasurable to work with. Eye glass frames are plentiful and the opticians are helpful, suggestive and patient! Thanks to everyone for making all of visits wonderful!!"
    Cynthia 2/14/19 – Great Experience
  • "Dr Nakagawara is open, friendly and extremely knowledgeable. Karim Glover in the optical dispensary took great care in explaining and helping me to get great value on a new set of prescription sunglasses that will do much more than my previous set. Extremely happy.
    Loved the Optician!"
    Thomas 2/22/19 - Great Doctors and Team...
  • "I cannot tell you how happy I am with Brier Creek Vision. Everyone from the moment you enter, all the way through the appointment, is knowledgeable friendly and caring. I receive excellent and professional care. Highly recommend!"
    Helen 2/21/19 - Excellent care
  • "Went from 20/30 to 20/20! The sky is the limit with dr Patel. Will continue to bring both my kids here...."
    Temidayo 2/17/19 - Dr Patel Rocks!!!!
  • "I have had nothing but amazing experiences here! The entire staff is very friendly and knowledgeable. I have never walked away unsatisfied."
    Shelby 2/14/19 - Awesome!
  • "This office has all of the latest equipment and skills to take care of your eyes."
    Wales 2/6/19 - Great eye care!
  • "The atmosphere in the office is very pleasant and welcoming. I always feel comfortable in both the waiting room and the exam rooms. Selecting glasses is also a breeze, as the staff is extremely helpful and knowledgable."
    Kris 1/31/19 - Amazing Experience
  • "Our family visit was over the top. The entire staff took their time and made sure each and everyone's exam was through. No pressure to buy glasses. Our experience with Dr. Nakagawara was outstanding!!"
    Melissa 1/31/19 - Recommend
  • "I always have the best visit at Brier Creek Vision. My Doctor, Esther Nakagawara, is the best at what she does! She handles the procedures with care, caution and concern, explains well and has the best solutions to keep your eyes healthy. The staff is accommodating, patient and very kind to everyone; they never mind answering questions. The opticians are helpful in assisting with the selection of eyecare that looks good and works the best for you. I have told many people about my positive experiences at Brier Creek Vision and recommended this office as well."
    Kailah 1/30/19 - The Best in Eyeccare!!
  • "My family and I have been patients of Brier Creek Vision for 2 years. Dr. Nakagawara is a very caring and skilled OD who communicates, teaches and plans well. The staff and optometrists are inviting, knowledgeable and very helpful. We have recommended BCV to all our friends and family!"
    Cynthia 1/30/19 - Highly recommend
  • "I was thrilled to learn about the new Shaw lens concept to treat my daughter's amblyopia!"
    Molly 1/30/19 - Excellent Experience