15 Astigmatism Facts You Need to Know
Most people have some degree of astigmatism yet it remains one of the most misunderstood eye conditions. You may be squinting at this screen right now because of it. From what actually causes it to how modern treatments can permanently correct it, here are 15 facts your eye doctor wants you to know.
What Is Astigmatism?
Astigmatism is a common refractive error caused by an irregularly shaped cornea or lens. Instead of being perfectly round, the eye is shaped more like a football – causing light to focus unevenly on the retina and leading to blurred or distorted vision at all distances.
Read our complete guide: What Is Astigmatism? Causes, Types, Symptoms & Treatment
Continue reading 15 Astigmatism Facts You Need to Know

Dr. Azhar I. Salahuddin is an ophthalmologist and is fellowship-trained in cornea, external diseases, and refractive surgery. Dr. Salahuddin has been performing cataract surgery for over 19 years and specializes ocular reconstruction, corneal transplantation surgery as well as vision correction through a variety of intraocular lenses. Dr. Salahuddin is board-certified by the American Board of Ophthalmology and was trained at Boston University.