Dry eyes can cause temporary blurry vision because the tear film on the corneal surface is disrupted, preventing light from focusing stably on the eye.
Blurry vision after waking up is often due to dry eyes, especially when sleeping under a fan, but sometimes it can also be related to corneal disease or diabetes.
Constant phone use, staying up late, insufficient hydration, or wearing contact lenses for too long are habits that can lead to dry eyes, irritation, and blurry vision.
