What is astigmatism?
Astigmatism usually occurs with other conditions
LASIK can be performed on patients with low astigmatism
If refractive errors are relatively low, then you could consider opting for LASIK as well as other options such as PRK and ReLEx SMILE. These treatments can help improve your vision as long as astigmatism is not too severe. 
However, patients should undergo a suitability assessment first
Before carrying out any form of laser vision correction, it is always best to go for a suitability assessment. Factors such as corneal thickness, shape, and general health can all be considered and determined. 
It is best to wait until you are at least 18 years of age before refractive surgery
Generally, children (including teenagers) should not get any form of refractive surgery, since their eyes are not yet fully matured and they might experience significant changes in refractive errors. 
Lasers may be ineffective for treating high levels of astigmatism
Lasers such as PRK, LASIK, and ReLEx SMILE may not be able to provide long-term stability for high levels of astigmatism. In fact, it could increase the chance of complications like dysphotopsia (haloes & glares) and corneal ectasia. 
Consider Implantable Collamer Lenses as an alternative treatment
If you have high levels of myopia and astigmatism, Dr David suggests implantable collamer lens (ICL) as a viable option. Check with your doctor if there is sufficient space within the eye first. 
Refractive surgery methods such as LASIK can be effective in some instances of astigmatism or other refractive errors. However, get your ophthalmologist to give you a complete evaluation before making a decision as there are possible complications that may arise.
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1. Alan Kozarsky. What Is Astigmatism? WebMD. 9 Sept 2018. Accessed April 2019.
2. American Optometric Association. Astigmatism. American Optometric Association. 2019. Accessed April 2019.
3. Mayo Clinic Staff. Farsightedness. Mayo Clinic. 12 June 2018. Accessed April 2019.
4. Brian S. Boxer Wachler. The LASIK Procedure: A Complete Guide. All About Vision. May 2018. Accessed April 2019.
5. WebMD. A Guide to Refractive and Laser Eye Surgery. WebMD. 2019. Accessed April 2019.
6. Vance Thompson. How Old Do You Have To Be To Get LASIK? All About Vision. March 2018. Accessed April 2019.
7. Vanessa Caceres. Treating, eliminating negative dysphotopsia. Eyeworld: An ASCRS Publication. April 2014. Accessed April 2019.
8. Brenda Conaway. Implantable Lenses: Help for Severe Myopia. WebMD. 2019. Accessed April 2019.