When you have an imperfection in the curvature of your cornea or in the shape of the eye’s lens, you have astigmatism.
When you have an imperfection in the curvature of your cornea or in the shape of the eye’s lens, you have astigmatism. Corneal astigmatism is when the cornea has an irregular shape, while lenticular astigmatism is when the shape of the lens is distorted. Let’s say you have a 0.75 diopters of astigmatism. The doctors will try and correct that with a toric contact lens. Toric means the contact lens will not only correct nearsightedness or farsightedness, it means it is also going to correct the astigmatism.
When Should You Use Toric Lenses?
The doctor should be the one to determine if you are going to wear toric lens or not. if you have a 0.75 diopters of astigmatism, then you should wear toric lens. You will not only have a better vision, but it will also help with your astigmatism. It sometimes is a judgment call. Normally, contact lenses that correct astigmatism cost more. They also feel a little bit different too. If you haven’t tried wearing toric contact lens even though you have a 0.75, you should. If you have a 1.00 or more diopters of astigmatism, you should as well try a toric contact lens. It will improve your vision.
Which Type of Toric Contact Lens Should You Wear?
The doctor will probably have his or her “go to” brand. Most of the new designs work well, and it doesn’t matter what brand you are wearing. However, there are cases in which the lenses don’t fit well in a patient’s eye. This is why the doctor evaluation is so important. Some calculations can be made and the lens can be put back in place so that patient sees clearly and well again.
What the Doctor Will Recommend You
In case there isn’t much astigmatism, the doctor may not see a need to change the lens if the patient sees well with the current ones. However, if the patient complains of second images or ghosting, then it may be the time that your doctor recommend toric contact lenses. If the patient want to sleep with the lenses on, there are toric contact lens brands that are approved for that. Some aren’t. The more often you replace a lens, the better is for the eye. How much astigmatism you have may dictate what brand to get. When you have a lot of astigmatism, there are only a few choices. However, they are still good choices. You could go with gas permeable lens. There are many patients who wear standard designed gas perm lenses and they are very happy with them. But they are hard lenses. They can correct the roughest astigmatism. And they can give you a sharp vision too.
Do not worry too much if you have astigmatism. There are many solutions out there. The most important thing is that you go to the doctor and get the correct lens for your problem. At an eye exam and glasses Hamilton you could find out how much astigmatism you have and what kind of lenses to wear.
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