“Can dry eye cause irregular astigmatism?”

Greetings! Yes, and no, to your question. If you have mild to moderate dry eyes and get a corneal "mapping" test done at your eyecare provider's office, it may show something that looks like irregular astigmatism. But, typically, the mapping tests can improve if you treat the dry eye. The significant long-term dry eye could theoretically create scarring and haze on the eye that causes irregular astigmatism that doesn't improve. I hope that helps!

Dry eyes can make a map of your cornea appear as irregular astigmatism . If you treat the dry eye and repeat test sometimes it can become more regular.