Three-year-old baby astigmatism normal range

The normal range of astigmatism for three-year-olds should be below 50 degrees.

Astigmatism refers to parallel light entering the eyes to form two focal lines, which cannot form a clear image on the retina. Astigmatism for three-year-olds may be caused by congenital factors. The normal range of astigmatism is below 50 degrees. It is a normal physiological phenomenon and generally does not affect eye vision and eye development. No special treatment is required. If the degree of astigmatism is relatively large, consider keratitis, corneal ulcer and other diseases, may affect the development of optic nerve and baby's health, need to go to the hospital immediately.