Astigmatism

11 min read

Astigmatism is a common eye condition that causes blurred vision due to an irregularly shaped cornea. It is caused by an imperfection in the curvature of the cornea or lens of the eye, which prevents light from focusing properly on the retina. Astigmatism can occur in combination with nearsightedness (myopia) or farsightedness (hyperopia).

Causes of Astigmatism

Astigmatism is usually present at birth, but can also develop later in life due to an eye injury or disease. It can also be caused by the shape of the eye changing over time, such as with age-related farsightedness.

Diagnosis of Astigmatism

Astigmatism is usually diagnosed during a comprehensive eye exam. During the exam, your eye doctor will measure the curvature of your cornea and use a special instrument to measure the amount of astigmatism present. Your doctor may also use a retinoscope to measure the refractive power of your eye.

Complications of Astigmatism

Astigmatism can cause blurred vision at all distances, and can make it difficult to focus on objects both near and far. It can also cause headaches, eyestrain, and fatigue. If left untreated, astigmatism can lead to amblyopia (lazy eye) or strabismus (crossed eyes).

Symptoms

  • Blurred vision at all distances
  • Headaches
  • Eye strain
  • Squinting
  • Difficulty seeing at night
  • Double vision

If you experience any of these symptoms, it is important to see an eye doctor for a comprehensive eye exam. An eye doctor can diagnose astigmatism and recommend the best treatment options for you.

Take the Astigmatism Assessment

Causes

Genetics

Genetics is believed to be the most common cause of astigmatism. If one or both of your parents have astigmatism, you are more likely to develop it as well. In addition, certain genetic conditions, such as Down syndrome, can increase the risk of developing astigmatism.

Eye Injury or Surgery

Eye injuries or surgeries can cause the cornea to become misshapen, resulting in astigmatism. This type of astigmatism is known as post-surgical astigmatism. It is usually temporary, but in some cases, it can be permanent.

Diseases

Certain diseases, such as keratoconus, can cause the cornea to become thin and irregularly shaped, resulting in astigmatism. This type of astigmatism is known as keratoconus-related astigmatism.

Age

Astigmatism can develop at any age, but it is more common in children and young adults. As the eye grows, the shape of the cornea can change, resulting in astigmatism.

Conclusion

Astigmatism is a common vision condition that can be caused by genetics, eye injuries or surgeries, diseases, and age. While the exact cause of astigmatism is unknown, understanding the potential causes can help you take steps to prevent or manage the condition.

Getting a Diagnosis

Eye Exam

The first step in diagnosing astigmatism is to have a comprehensive eye exam. During the exam, your eye doctor will measure the curvature of your cornea and check your vision. They may also use a device called a keratometer to measure the curvature of your cornea. This will help them determine if you have astigmatism and how severe it is.

Refraction Test

Your eye doctor may also perform a refraction test to measure your vision. During this test, you will be asked to look through a machine that has different lenses. Your doctor will then measure how your eyes respond to the lenses and determine your prescription.

Corneal Topography

Corneal topography is a test that uses a special camera to take a detailed map of the surface of your cornea. This test can help your doctor determine the shape and curvature of your cornea, which can help them diagnose astigmatism.

Treatment Options

Once your doctor has diagnosed your astigmatism, they will discuss treatment options with you. Depending on the severity of your condition, they may recommend glasses, contact lenses, or refractive surgery. Your doctor will help you decide which option is best for you.

Questions for Your Doctor

Treatment Options

Your doctor can discuss the various treatment options available for astigmatism. These may include eyeglasses, contact lenses, or refractive surgery. Depending on the severity of your astigmatism, your doctor may recommend one of these treatments or a combination of them.

Lifestyle Changes

Your doctor can also discuss lifestyle changes that may help improve your vision. These may include avoiding activities that require close-up vision, such as reading or using a computer, and wearing sunglasses when outdoors. Your doctor may also recommend that you take breaks from activities that require close-up vision to give your eyes a rest.

Eye Exercises

Your doctor may also recommend eye exercises to help improve your vision. These exercises can help strengthen the muscles in your eyes and improve your focus. Examples of eye exercises include focusing on a distant object, blinking rapidly, and rolling your eyes in a circular motion.

Follow-up Visits

Your doctor may also recommend follow-up visits to monitor your vision. During these visits, your doctor will check your vision and make sure that your treatment is working. If your vision is not improving, your doctor may recommend a different treatment or lifestyle changes.

Conclusion

If you have been diagnosed with astigmatism, it is important to have regular check-ups with your doctor. During these visits, your doctor can discuss treatment options, lifestyle changes, and eye exercises that may help improve your vision. Your doctor may also recommend follow-up visits to monitor your vision and make sure that your treatment is working.

Treatment

Glasses

Glasses are the most common treatment for astigmatism. They can correct the blurred vision caused by the irregular shape of the cornea. They can also help reduce eye strain and fatigue.

Contact Lenses

Contact lenses are another option for correcting astigmatism. They can be used to correct the irregular shape of the cornea and improve vision. They are also more comfortable than glasses and can be worn for longer periods of time.

Surgery

Surgery is an option for those who do not want to wear glasses or contact lenses. It involves reshaping the cornea to correct the astigmatism. This can be done with laser surgery or with a procedure called radial keratotomy. Both of these procedures are safe and effective, but they can be expensive.

Eye Exercises

Eye exercises can help improve vision in people with astigmatism. These exercises involve focusing on objects at different distances and can help strengthen the eye muscles. They can also help reduce eye strain and fatigue.

Eye Drops

Eye drops can be used to reduce the symptoms of astigmatism. These drops can help reduce eye strain and fatigue, as well as improve vision. They can also help reduce the risk of developing other eye conditions.

Conclusion

Astigmatism can be corrected with glasses, contact lenses, surgery, eye exercises, or eye drops. Each of these treatments has its own advantages and disadvantages, so it is important to talk to your doctor to determine which one is best for you.

Drugs & Medications

Prescription Eye Drops

Prescription eye drops are often used to treat astigmatism. These drops contain medications that help reduce inflammation and improve vision. Commonly prescribed eye drops include cyclosporine, corticosteroids, and nonsteroidal anti-inflammatory drugs (NSAIDs).

Oral Medications

In some cases, oral medications may be prescribed to treat astigmatism. These medications can help reduce inflammation and improve vision. Commonly prescribed oral medications include corticosteroids, nonsteroidal anti-inflammatory drugs (NSAIDs), and anticholinergics.

Surgery

In some cases, surgery may be recommended to treat astigmatism. Surgery can help reshape the cornea and improve vision. Commonly performed surgeries include laser-assisted in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK).

Conclusion

Astigmatism is a common eye condition that can be corrected with eyeglasses, contact lenses, or surgery. In some cases, medications may be prescribed to help reduce the symptoms of astigmatism. These medications include prescription eye drops, oral medications, and surgery. If you have astigmatism, talk to your doctor about the best treatment options for you.

Diet

Foods to Eat

Eating a healthy, balanced diet is important for everyone, but it is especially important for people with astigmatism. Here are some of the best foods to include in your diet:

  • Leafy green vegetables: Spinach, kale, and other leafy greens are packed with vitamins and minerals that can help improve your vision. They are also high in antioxidants, which can help protect your eyes from damage.
  • Fish: Fish is a great source of omega-3 fatty acids, which can help reduce inflammation and improve your vision. Salmon, tuna, and mackerel are all good choices.
  • Berries: Berries are high in antioxidants, which can help protect your eyes from damage. Blueberries, strawberries, and raspberries are all good choices.
  • Eggs: Eggs are a great source of protein and vitamins A and D, which can help improve your vision. They are also high in lutein, which can help protect your eyes from damage.
  • Nuts and seeds: Nuts and seeds are a great source of healthy fats, which can help improve your vision. Almonds, walnuts, and flaxseeds are all good choices.

Foods to Avoid

In addition to eating the right foods, it is also important to avoid certain foods that can worsen your astigmatism. Here are some of the foods to avoid:

  • Processed foods: Processed foods are high in sugar and unhealthy fats, which can worsen your astigmatism. Avoid processed snacks, such as chips and cookies, and opt for healthier alternatives.
  • Refined carbohydrates: Refined carbohydrates, such as white bread and pasta, can cause your blood sugar to spike, which can worsen your astigmatism. Opt for whole grain alternatives instead.
  • Sugary drinks: Sugary drinks, such as soda and juice, can cause your blood sugar to spike, which can worsen your astigmatism. Opt for water or unsweetened tea instead.
  • Alcohol: Alcohol can worsen your astigmatism, so it is best to avoid it. If you do choose to drink, opt for red wine, which can help protect your eyes from damage.

Eating a healthy, balanced diet is important for everyone, but it is especially important for people with astigmatism. Eating the right foods can help improve your vision and reduce the symptoms of astigmatism. Avoiding certain foods can also help improve your vision. If you have astigmatism, talk to your doctor about the best diet for you.

Lifestyle

1. Wear the Right Glasses or Contacts

The most important lifestyle tip for astigmatism is to wear the right glasses or contacts. Your optometrist can help you find the right prescription for your eyes. Make sure to get regular eye exams to ensure that your prescription is up to date.

2. Take Breaks from Screens

Staring at screens for long periods of time can cause eye strain and worsen astigmatism symptoms. To reduce eye strain, take regular breaks from screens. Every 20 minutes, look away from the screen and focus on something else in the room for 20 seconds.

3. Get Plenty of Sleep

Getting enough sleep is essential for good vision. Aim for 7-9 hours of sleep each night. This will help reduce eye strain and improve your vision.

4. Eat a Healthy Diet

Eating a healthy diet can help improve your vision. Foods rich in vitamins A, C, and E, as well as omega-3 fatty acids, can help improve your vision. Try to include these foods in your diet: leafy greens, fish, nuts, and eggs.

5. Exercise Regularly

Exercising regularly can help improve your vision. Exercise increases blood flow to the eyes, which can help reduce eye strain and improve your vision. Aim for at least 30 minutes of exercise each day.

Conclusion

Astigmatism can cause blurred vision, headaches, and eye strain. Fortunately, there are a few lifestyle tips that can help you manage your astigmatism and improve your vision. Wear the right glasses or contacts, take breaks from screens, get plenty of sleep, eat a healthy diet, and exercise regularly.