非正视眼为眼球在静止状态下,平行光线不能形成清晰的图像称为屈光不正。屈光不正可因眼球长度的改变所致,称为轴性屈光不正。屈光不正有远视、近视、散光三大类。 一 远视眼 为眼球屈光力的相对过弱,在调节静止状态下,平行光线聚焦于视网膜之后,视网膜上形成弥散环。 Non-orthoptic eyes for the eye In the quiescent state, the parallel rays can not form a clear image called refractive error. Refractive errors may be due to changes in the length of the eye caused by, known as axial refraction. Refractive error farsightedness, myopia, astigmatism three categories. A hyperopic as the refractive power of the eye is relatively weak, in the regulation of rest state, the parallel light focused on the retina, the formation of diffuse ring on the retina.