The vision of myopia can vary depending on the severity of the myopia and the age. For a baby of about 2 and a half weeks, myopia may manifest as strabismus and difficulty in viewing objects. Typically, the vision of myopia can be normal, or have poor nearsightedness and good farsightedness, or both. Through professional ophthalmological examination, suitable convex spherical lenses can be determined to correct vision problems. For adolescents with myopia and internal strabismus, a cycloplegic refraction is required, and appropriate glasses should be worn. Children found to have strabismus should receive ophthalmological examination and treatment as soon as possible to prevent vision decline and amblyopia.