The VKC was special of little age,typical upper tarsus papilla and high incidence of corneal limbus change.

• 春季角结膜炎 (vernalkeratoconjunctivitis ,VKC)发病年龄最小 ,伴有典型的上睑结膜乳头改变和高的角膜缘改变发生率 ( 76 7%25 )。