Conclusion Compared to emmetropia and late onset myopia, early onset myopia has a greater amount of parasympathetic innervation to the ciliary muscle that induces stretching and causes the eyes to become myopic.

• 结论与正视及迟发性近视比较,早发性近视者有较强的副交感神经支配,较强的副交感神经支配导致较强的睫状肌张力,从而导致眼球的牵拉和近视化的进展。