Experiencing blurry vision, persistent eye strain, or frustrating headaches? These common issues can often be traced back to a highly treatable condition called astigmatism. It’s one of the most frequent reasons people seek vision correction, yet many are unsure what it really is. At The Eye Scene, our expert optometrists in Double Bay are dedicated to providing clarity, not just for your vision, but for your understanding of eye health as well.
This comprehensive guide will walk you through everything you need to know about astigmatism. We’ll explore what causes it, how to recognise the symptoms, and the modern treatment options available to help you see the world with sharpness and comfort.
What is Astigmatism?
Astigmatism is a common refractive error caused by an imperfection in the shape of your eye. In a perfectly shaped eye, the cornea (the clear front surface) and the lens (the internal focusing part) are smooth and spherical, like a soccer ball. This allows light to bend evenly and focus to a single sharp point on the retina, producing clear vision.
When you have astigmatism, either the cornea or the lens has an irregular curve, shaped more like an AFL football. Due to this uneven shape, light entering the eye bends more in one direction than in the other. As a result, the light focuses on multiple points instead of just one, causing your vision to be blurry or distorted at all distances. It’s a condition that can be present from birth and often occurs alongside short-sightedness (myopia) or long-sightedness (hyperopia).
What are the Common Symptoms of Astigmatism?
The signs of astigmatism can range from very subtle to significantly disruptive. Because vision changes often happen gradually, you might not realise that the discomfort you’re feeling is a correctable problem. If you notice any of the following astigmatism symptoms, it may be time for a comprehensive eye examination.
- Blurred or distorted vision: This is the most common symptom, affecting your ability to see clearly both near and far.
- Eye strain and discomfort: You may feel a persistent sense of fatigue or strain in your eyes, particularly after concentrating on a task.
- Headaches: Frequent headaches, especially after reading or using digital devices, can be a sign that your eyes are working too hard to focus.
- Squinting: You might find yourself squinting instinctively in an attempt to see objects more clearly.
- Difficulty with night vision: Astigmatism can make it harder to see at night and may cause halos or starbursts to appear around lights.
What Causes Astigmatism?
For most people, astigmatism is hereditary and present from birth. The exact reason for the variations in corneal or lens shape is unknown, but it’s rarely a sign of underlying eye disease.
In some cases, astigmatism can develop later in life. This may be due to an eye injury that alters the shape of the cornea, certain types of eye surgery, or a progressive condition like keratoconus, which causes the cornea to thin and bulge outwards. It’s important to bust a common myth: astigmatism is not caused or made worse by reading in poor light or sitting too close to the television.
Diagnosing Astigmatism at The Eye Scene
The only way to get a definitive astigmatism diagnosis is through a comprehensive eye exam with an optometrist. Here at The Eye Scene in Double Bay, our experienced team uses advanced diagnostic technology to assess your vision and eye health with precision. The process is straightforward, painless, and essential for ensuring you get the right prescription.
During your examination, we may use several instruments to measure how your eyes focus light. A keratometer can measure the curvature of your cornea, while a corneal topographer can create a detailed map of its surface. Using a phoropter, the device with many lenses that we place in front of your eyes, we can determine the exact lens power needed to correct your vision.
Think you might have astigmatism? Our expert optometrists in Double Bay can provide a clear diagnosis. Book your comprehensive eye exam today.
Modern Astigmatism Treatment Options
The great news is that astigmatism is easily managed. Depending on your lifestyle, preferences, and the degree of astigmatism, we can recommend a solution that provides clear and comfortable vision.
Prescription Glasses
The most common and simplest method for correcting astigmatism is with prescription glasses. Your lenses will include a specific cylindrical correction that compensates for the irregular shape of your eye. This precisely bends the light to focus correctly onto your retina, delivering sharp vision.
Contact Lenses for Astigmatism (Toric Lenses)
For those who prefer not to wear glasses, toric contact lenses are an excellent astigmatism treatment. Unlike regular spherical contacts, toric lenses are specially designed with different powers in different meridians of the lens to correct the specific unevenness of your eye. They are also designed to remain stable on the eye and not rotate, ensuring your vision stays consistently clear.
Refractive Surgery
For a more permanent solution, refractive surgery like LASIK can reshape the cornea to correct astigmatism. This procedure is suitable for many candidates, but a thorough consultation is required to determine if it’s the right option for your eyes. Our team can discuss this with you and refer you to a trusted surgeon.
Why Regular Eye Exams Are Crucial
Your vision can change over time, sometimes so gradually that you don’t notice the difference. Regular eye examinations are the key to ensuring your prescription is always optimal for your needs. More importantly, they are a vital part of your overall healthcare.
A comprehensive eye test allows our optometrists to detect not only refractive errors like astigmatism but also the early signs of serious eye conditions, such as glaucoma, cataracts, and macular degeneration. Early detection is crucial for effective management and preserving your precious sight for years to come.
Don’t let blurry vision or headaches hold you back. Take the first step towards clear, comfortable sight. Book an appointment with our experienced team at The Eye Scene in Double Bay and let us tailor the perfect vision solution for you.