Astigmatism may cause blurred vision, visual fatigue, eye pain, photophobia, tears, ghosting and other symptoms. Most people have congenital astigmatism. Acquired astigmatism is often caused by corneal diseases, trauma, eyelid tumors, ophthalmic surgery and other factors; Squinting eyes, rubbing eyes, reading in sleep, etc., myopia has not worn glasses for many years, and squinting eyes for a long time will easily lead to increased astigmatism; Ptosis, styloma, keratoconus, these can cause astigmatism. Mild astigmatism can not be corrected temporarily if there is no obvious symptom. Astigmatism may cause different degrees of amblyopia in children. If there is asthenopia and amblyopia, it must be corrected, wearing frame glasses to correct vision, and corneal refractive surgery can also be performed to correct astigmatism.
