Astigmatism in a five year old child requires a dilated eye examination by an ophthalmologist. Under the guidance of the ophthalmologist, ciliary muscle paralyzing agent drops are used, and then an astigmatic optometry is performed, through which the exact degree of astigmatism and the axis of astigmatism can be clarified. Generally, children need to undergo astigmatism in order to determine the degree of astigmatism. Astigmatism does not cause much harm to the eyes, but mainly relaxes the muscles of the eyeballs to clarify the exact situation. Through the results of the astigmatism test, you can choose the right glasses to improve your astigmatism. For five-year-olds, a ciliary muscle paralyzing agent is required, while adolescents over 12 years old can undergo a rapid astigmatism test to clarify the degree of astigmatism. When astigmatism occurs, it is important to be under the guidance of a doctor and make positive improvements to avoid serious consequences.