5 Facts About Astigmatism You Should Know
Astigmatism is a common vision condition that occurs when the eye has an irregular shape, making it difficult for light to focus properly on the retina. This can result in blurred or distorted vision at all distances. Fortunately, once diagnosed by an optometrist, astigmatism can be easily corrected with glasses, contact lenses, or even laser eye surgery.
If you’ve ever been told you have astigmatism or suspect you might, here are five key facts to help you better understand this condition.
1. You Should See an Optometrist If You Experience Astigmatism Symptoms
Astigmatism can develop at any age and often goes undiagnosed because symptoms may be subtle at first. If left uncorrected, it can cause discomfort and make daily activities like reading, driving, or using a computer more difficult.
Some common signs of astigmatism include:
- Blurred or distorted vision at all distances
- Headaches caused by eye strain
- Difficulty with night vision, particularly while driving
- Poor depth perception, making it harder to judge distances
- Frequent squinting to see objects more clearly
- Double vision in one or both eyes
If you’re experiencing any of these symptoms, it’s important to book an eye exam with an optometrist. A simple vision test can confirm whether you have astigmatism and determine the best treatment option for you.
2. There’s More Than One Type of Astigmatism
Not all cases of astigmatism are the same. In fact, there are two primary types:
- Corneal astigmatism occurs when the cornea—the clear, outer layer of the eye—has an irregular shape. This is the most common form of astigmatism.
- Lenticular astigmatism happens when the lens inside the eye is misshapen, affecting how light is focused on the retina.
Both types can cause similar symptoms, and your optometrist will be able to tell you which type you have. Fortunately, treatment is available for both, whether through glasses, contact lenses, or corrective surgery.
3. Advances in Contact Lens Technology Have Made Astigmatism Easier to Correct
In the past, people with astigmatism had limited options when it came to contact lenses. The only choice was rigid gas-permeable (RGP) lenses, which can be uncomfortable for some wearers.
However, modern toric contact lenses, introduced in the late 1970s, have revolutionized astigmatism correction. These soft lenses are specially designed to stay in place and provide clear, stable vision. Toric lenses are now widely available in daily, bi-weekly, and monthly disposable options, making them a convenient and comfortable choice.
If you have astigmatism and are interested in switching to contact lenses, an optometrist can help you find the right type for your eyes.
4. Laser Eye Surgery Can Correct Astigmatism in Many Cases
For those looking for a more permanent solution, laser eye surgery is an option for correcting astigmatism. Procedures like LASIK and PRK reshape the cornea to allow light to focus correctly on the retina, improving vision.
However, not everyone is a good candidate for laser surgery. Factors like the severity of your astigmatism, corneal thickness, and overall eye health will determine whether you’re eligible for the procedure. If you’re considering laser eye surgery, your optometrist can assess your eyes and discuss whether it’s the right option for you.
5. Your Daily Habits Won’t Cause Astigmatism
There are plenty of myths about what causes astigmatism, but the truth is that you can’t develop astigmatism from bad habits like reading in dim light or sitting too close to the TV.
Most cases of astigmatism are inherited and present from birth, though they can also develop later due to eye injuries, surgery, or certain eye diseases. While astigmatism can change over time, especially as you age, it is not caused or worsened by everyday activities.
The most important thing you can do is have regular eye exams to monitor any changes in your vision and ensure you have the right prescription to see clearly.
The Importance of Regular Eye Exams
Whether you suspect you have astigmatism or already wear corrective lenses, regular check-ups with an optometrist are essential for maintaining good vision.
- Children and teenagers should have an eye exam at least once a year, as their vision can change rapidly.
- Adults with astigmatism should have an exam every one to two years, depending on their prescription and eye health.
- Older adults should have more frequent eye exams to screen for age-related conditions like cataracts, glaucoma, and macular degeneration.
An optometrist can ensure your prescription is up to date and recommend the best vision correction options for your lifestyle.
Comprehensive Eye Care in the Greater Edmonton Area
If you’re experiencing vision problems or need an updated prescription, Optometrists’ Clinic Inc. is here to help. Since 1938, we’ve been providing top-quality eye care to residents of Edmonton, Leduc, and Westlock.
Our experienced team can diagnose and treat astigmatism, fit you for the latest contact lenses, and offer personalized solutions for your vision needs.
Contact us today to book an appointment at one of our five convenient locations.
