Key Takeaways
- Astigmatism happens when the shape of your cornea or lens affects how light reaches the retina.
- Symptoms include blurry vision, eye fatigue, headaches, and halos.
- Aging, eye injuries, and conditions like keratoconus can change astigmatism over time.
- Glasses, contact lenses, and laser surgery are all options worth discussing with your eye doctor.
- Regular eye exams help track changes before they affect your daily life.
Your vision feels off, but you can’t quite put your finger on why. Things look blurry at all distances, your eyes feel tired by midday, and headaches seem to follow long drives or screen time. If that sounds familiar, astigmatism could be part of the picture.
Astigmatism happens when the shape of your cornea or lens causes light to focus unevenly on the retina, and it can change over time for a number of reasons. The good news is that it’s manageable, and knowing what to look for makes a real difference. The Eye Care Team is here to walk you through what’s going on with your vision and what you can do about it. If you’re ready to get answers, schedule a comprehensive eye exam and start from there.
What Is Astigmatism?
Your cornea and lens work together to direct light onto the retina at the back of your eye. When either one has an irregular shape, light scatters instead of landing in one clean point. That scatter is what makes vision look blurry or distorted at multiple distances, not just up close or far away.
Over time, that strain on your eyes can lead to fatigue and recurring headaches, especially during tasks that demand focus.
Signs You May Have Astigmatism
The signs of astigmatism often creep in gradually, which is why many people assume they’re just tired or staring at screens too long. Here’s what to watch for:
- Blurry or distorted vision at near and far distances.
- Eye fatigue or frequent headaches, especially after reading or driving.
- Halos or streaking around lights, particularly at night.
How an Eye Doctor Checks for It
A comprehensive eye exam is the most reliable way to confirm astigmatism. Your optometrist will use a vision chart to assess how clearly you see at different distances. They may also use keratometry, a simple measurement tool that maps the curvature of your cornea with precision. Together, these tests give a clear picture of what’s happening with your vision. You can learn more about how astigmatism is diagnosed and what to expect during that process.
Why Astigmatism Can Get Worse Over Time
The Role of Aging
Astigmatism isn’t always static. As you age, the tension in your eyelids shifts, and that can gradually change the shape of your cornea. You may not notice it happening on its own, but when it develops alongside nearsightedness, the combined effect on your vision tends to be more noticeable. That’s one reason regular checkups matter even when you feel like your vision hasn’t changed.
Eye Injuries and Keratoconus
An injury to the eye can leave the cornea healing unevenly, which may introduce or worsen astigmatism. Keratoconus is a separate condition where the cornea gradually thins and takes on a cone-like shape, which significantly distorts how light enters the eye. Both situations call for consistent monitoring by an optometrist.
Correction Options for Astigmatism
Glasses and Contact Lenses
For mild to moderate astigmatism, glasses are a straightforward option. They’re easy to adjust as your prescription changes and work well for most daily activities. If you prefer contacts, toric lenses are designed to stay in the correct position on your eye to account for the irregular curvature. Rigid gas-permeable lenses are another option that some people find gives them clearer vision than soft lenses.
Laser Eye Surgery
LASIK and PRK are surgical options that reshape the cornea directly. Either procedure may reduce or remove your need for corrective lenses. Not everyone is a candidate, though. Your optometrist can refer you to an ophthalmologist for a thorough evaluation to find out whether surgery is a realistic path for you.
Why Regular Eye Exams Matter for Astigmatism
Vision can shift even when you don’t notice anything wrong. Astigmatism, in particular, tends to change slowly, which means it’s easy to adjust to a blurrier version of normal without realizing it. Catching those shifts early means your prescription stays accurate and your eyes aren’t working harder than they need to.
Whether you’re looking for an eye doctor in Spokane or Chewelah, The Eye Care Team can help you track changes over time and adjust your correction before small shifts become bigger problems. Schedule your comprehensive eye exam today and keep your vision working for you.
