Can I Wear Normal Contacts With Astigmatism?
The short answer is: no, you generally cannot wear standard spherical contact lenses if you have astigmatism. Astigmatism is a refractive error where the cornea (the clear front part of your eye) is irregularly shaped, causing blurred vision at all distances. Standard contact lenses, also known as spherical lenses, are designed to correct nearsightedness (myopia) or farsightedness (hyperopia) by focusing light evenly onto the retina. They cannot correct the uneven focusing caused by astigmatism.
To understand why, let's delve into the differences between these lens types:
Spherical Contacts: These correct myopia or hyperopia by providing a single focusing power. They're like a perfectly round ball, focusing light equally in all directions.
Toric Contacts: These are specifically designed to correct astigmatism. They have two different focusing powers, addressing both the irregular shape of the cornea and the resulting blurred vision. They’re often described as having a "curvature" to compensate for the unevenness of the cornea.
What Happens if I Wear Spherical Contacts With Astigmatism?
Wearing spherical contacts when you have astigmatism will likely result in:
- Blurred vision: The most common consequence. The lens can't compensate for the irregular corneal shape, leading to indistinct images.
- Eye strain: Your eyes will work harder to try and compensate for the blurred vision, leading to fatigue, headaches, and discomfort.
- Reduced visual acuity: Your ability to see clearly will be significantly impaired.
- Increased risk of eye irritation: Because the lens doesn't fit properly, it may not sit comfortably on your eye, leading to irritation, dryness, and potentially even infections.
What Types of Contact Lenses Correct Astigmatism?
As mentioned above, toric contact lenses are specifically designed to correct astigmatism. They come in both daily disposable and extended wear options, just like spherical contacts. Your eye doctor will determine the best type and prescription for your individual needs.
How Do I Know if I Have Astigmatism?
The only way to definitively know if you have astigmatism is to undergo a comprehensive eye examination by an optometrist or ophthalmologist. They will perform a refraction test to determine the precise shape of your cornea and the corrective lenses you need.
What are the Different Types of Toric Contact Lenses?
There are several types of toric lenses available. Your eye doctor will discuss your options and recommend the type best suited for your eyes and lifestyle. Factors they will consider include the severity of your astigmatism, the shape of your cornea, and your preferences.
Can I Get Astigmatism Later in Life?
Yes, astigmatism can develop at any age, even in adulthood. Regular eye exams are crucial to monitor your vision and detect any changes.
Do I Need to See an Eye Doctor to Get Toric Contact Lenses?
Absolutely. It's essential to see an eye doctor to get a proper prescription for toric contact lenses. They will evaluate your eyes, determine the degree of your astigmatism, and fit you with the right lenses to ensure comfort and optimal vision correction. Improperly fitted toric lenses can cause discomfort and vision problems.
In conclusion, if you have astigmatism, you must not attempt to wear standard spherical contact lenses. Consult an eye care professional for a proper diagnosis and prescription for toric contact lenses to achieve clear and comfortable vision. Your eye health is paramount!
