Bourron-Madignier M, Hugonnier R
J Fr Ophtalmol. 1982;5(4):227-9.
Numerous observations in children under two years of age tend to demonstrate that the functional amblyopia of esotropia is not congenital in origin, but develops progressively between the ages of 3 months and 2 years. The initial motor disorder is an abduction deficiency. When this is symmetrical there is no amblyopia, but there is a greater risk for the deviated eye to become amblyopic when the deficiency is, or becomes, asymmetrical. Preventive treatment of the amblyopia involves the wearing of symmetrical nasal sectors, with associated partial occlusion in established cases, duration of which depends upon the child's age. Marked amblyopia with nasal fixation requires the use of a nasal sector placed in front of the amblyopic eye (associated with occlusion of the normal eye).
大量针对两岁以下儿童的观察结果倾向于表明，内斜视功能性弱视并非先天性起源，而是在3个月至2岁之间逐渐发展形成。最初的运动障碍是外展不足。当这种情况对称时，不会出现弱视，但当外展不足对称或变得不对称时，偏斜眼发生弱视的风险会更高。弱视的预防性治疗包括佩戴对称的鼻侧眼罩，对于已确诊的病例还需配合部分遮盖，遮盖时间取决于孩子的年龄。伴有鼻侧注视的明显弱视需要在弱视眼前放置鼻侧眼罩（同时遮盖正常眼）。
