What Is Astigmatism? A Simple Explanation for Curious Eyes

If you have ever visited Harrington Vision Center, you might have heard the term astigmatism during an eye exam. Astigmatism is a common vision condition that affects how the eye focuses light, often causing blurred or distorted vision. Many people experience it alongside nearsightedness or farsightedness, and understanding it can help you take better care of your sight.

How Astigmatism Affects Your Vision

Astigmatism occurs when the cornea, the clear front surface of the eye, or the lens inside the eye, is irregularly shaped. Instead of being perfectly round, it may be slightly oval. This irregular shape prevents light from focusing evenly on the retina, which is the light-sensitive tissue at the back of the eye. As a result, objects both near and far can appear blurry or stretched. People with astigmatism may notice squinting, eye strain, or headaches, especially after reading or using a computer.

Types of Astigmatism

There are a few different types of astigmatism:

• Corneal astigmatism: Caused by the uneven curvature of the cornea.
• Lenticular astigmatism: Results from an irregularly shaped lens inside the eye.
• Regular astigmatism: Has principal meridians at right angles and can often be corrected with glasses or contact lenses.
• Irregular astigmatism: Less common and may result from eye injuries, surgery, or certain eye diseases.

Diagnosis and Treatment

Our optometrist uses comprehensive eye exams to diagnose astigmatism. We measure how your eyes focus light and determine the degree of curvature in the cornea and lens. Corrective options include glasses, contact lenses, or refractive surgery, depending on the severity and your lifestyle needs. Regular checkups are important because astigmatism can change over time, and timely adjustments can improve comfort and clarity.

Contact Us Today

If you suspect you have astigmatism, contact Harrington Vision Center in Florence and Hartsville, SC, to schedule an appointment. Our team can provide a thorough eye exam and discuss the best corrective options for your vision. You can also browse our website to explore our full range of services before your visit. When you need an optometrist or astigmatism treatment near you, we’re ready to assist!