Astigmatism: Seeing the World in a Different Light
By Ameen Kandathil
Astigmatism is a common refractive error of the eye
There are several potential causes of astigmatism
There is no specific way to prevent astigmatism
Astigmatism is a common refractive error of the eye that occurs when the cornea (the clear front surface of the eye) or the lens inside the eye is irregularly shaped. This irregular shape causes distorted vision and other refractive errors such as nearsightedness (myopia) or farsightedness (hyperopia).
There are several potential causes of astigmatism, including genetics, injury to the eye, and conditions such as keratoconus, where the cornea becomes thin and cone-shaped.
There is no specific way to prevent astigmatism, but regular eye exams can help detect the condition early and allow for proper treatment. Wearing protective eyewear during sports or working with power tools, may also help reduce the risk of developing an astigmatism.
Treatment for astigmatism typically involves eyeglasses or contact lenses to correct refractive errors and improve vision. In some cases, surgery may be recommended to correct the shape of the cornea or lens.
In recent years, there have been several new developments in the treatment of astigmatism. One promising development is the use of (LASIK) surgery, which uses advanced laser technology to reshape the cornea and correct astigmatism. This type of surgery can provide long-lasting results and has a minimal risk of complications.
Another recent development is the use of Toric contact lenses, which are specially designed to correct astigmatism. Toric contact lenses have a different power in different meridians (areas) of the lens, allowing them to effectively correct the astigmatism and improve vision.
In conclusion, astigmatism is a common refractive error of the eye that causes distorted vision. There are several potential causes of astigmatism, and it can be treated with eyeglasses, contact lenses, or surgery. Recent developments in the treatment of astigmatism include custom LASIK surgery and Toric contact lenses.
American Optometric Association. (2021). Astigmatism. Retrieved from https://www.aoa.org/patients-and-public/good-vision-throughout-life/childrens-vision/astigmatism
Mayo Clinic. (2021). Astigmatism. Retrieved from https://www.mayoclinic.org/diseases-conditions/astigmatism/symptoms-causes/syc-20370080
National Eye Institute. (2021). Astigmatism. Retrieved from https://www.nei.nih.gov/health/astigmatism
American Academy of Ophthalmology. (2021). Astigmatism. Retrieved from https://www.aao.org/eye-health/diseases/astigmatism-causes-symptoms-treatment