Astigmatism is a common refractive error that affects how the eye focuses light. It’s caused by an irregular curvature of the cornea or lens, leading to blurred or distorted vision.
Astigmatism occurs when the front surface of the eye, the cornea, or the lens has varying curvatures in different meridians. Instead of being perfectly round like a basketball, the cornea may resemble the shape of a rugby ball. This uneven curvature causes light to focus on multiple points in the eye, leading to blurred vision.
How do I know if I have Astigmatism?
- Blurry Vision: Both near and distant objects might appear blurry, making everyday tasks like reading or driving a challenge.
- Distorted Images: Lines that should be straight might appear wavy or tilted.
- Eye Strain: Frequent headaches or eye discomfort, especially after extended periods of focus.
- Squinting: You might unconsciously squint to try and sharpen your vision.
- Trouble with Night Vision: Difficulty seeing clearly in low-light conditions, such as at dusk or nighttime.
If you suspect you are astigmatic, a comprehensive eye examination is crucial. An optometrist will conduct tests to measure the curvature of your cornea and determine the degree of astigmatism severity. These tests might include a visual acuity test, a keratometry test, and a refraction test.
How to fix?
The good news is that astigmatism is highly correctable. Eyeglasses and contact lenses are common solutions, with toric lenses specifically designed for astigmatism. In some cases, refractive surgery might be recommended to reshape the cornea and enhance vision.
If you’re experiencing any of the signs mentioned, it’s essential to consult an eye care professional. Only a comprehensive eye exam can accurately diagnose and determine the best course of action for your unique vision needs. Remember, early detection and proper correction can bring your world back into clear focus.