Last Updated on June 6, 2023 by Shabnam Sengupta
Cataract surgery is a procedure in which the cloudy natural lens is removed and replaced with a clear artificial lens. In this article, we will learn about astigmatism and if cataract surgery can correct astigmatism.
What is astigmatism?
Astigmatism is a common eye condition affecting how the eye focuses light. It occurs when the cornea (the clear front surface of the eye) or the lens inside the eye has an irregular shape, causing blurry or distorted vision. Instead of being perfectly round like a basketball, the cornea or lens may be shaped more like a football, resulting in difficulty seeing objects clearly at any distance.
Is astigmatism correction possible through cataract surgery?
Yes, cataract surgery can be used to correct astigmatism. During cataract surgery, the cloudy lens affected by the cataract is removed and replaced with an artificial intraocular lens (IOL). In addition to addressing the cataract, surgeons can also take steps to correct astigmatism during the procedure.
There are two main ways to do this:
- Toric intraocular lenses (IOLs). Toric IOLs are special lenses that have different powers in different directions. This allows them to correct the uneven curvature of the cornea that causes astigmatism. Toric IOLs are becoming increasingly popular, as they can provide excellent vision without needing glasses or contact lenses after surgery.
- Limbal relaxing incisions (LRIs). LRIs are small incisions that are made in the cornea during cataract surgery. These incisions can help to flatten the cornea and reduce astigmatism. LRIs are often used in combination with toric IOLs to provide the best possible vision correction.
The success of astigmatism correction with cataract surgery depends on several factors, including the severity of astigmatism, the type of IOL that is used, and the skill of the surgeon. In general, most people who have astigmatism can achieve good vision without glasses or contact lenses after cataract surgery.
Disclaimer: Medical Science is an ever evolving field. We strive to keep this page updated. In case you notice any discrepancy in the content, please inform us at [email protected]. You can futher read our Correction Policy here. Never disregard professional medical advice or delay seeking medical treatment because of something you have read on or accessed through this website or it's social media channels. Read our Full Disclaimer Here for further information.
