视力低下,但无明显眼部异常,或虽有屈光不正但经配镜矫正屈光度后视力还不能提高者称为弱视,它可由多种原因引起: 先天性弱视:这是最常见的弱视。它多半是单眼,常伴有高度屈光不正或眼球震颤等。 废用性弱视:亦称抑制性弱视。常见于屈光参差,包括单眼屈光不正,或双眼屈光度悬殊太大,以致视中枢无法将两眼之像融合为一,视力较差的眼被视力较好的 Visual acuity, but no obvious ocular abnormalities, or despite refractive errors, but can not improve the visual acuity after the glasses can correct diopter known as amblyopia, it can be caused by a variety of reasons: Congenital amblyopia: This is the most common amblyopia. It is mostly monocular, often accompanied by a high degree of refractive errors or nystagmus. Disuse amblyopia: also known as inhibitory amblyopia. Common in anisometropia, including monocular refractive errors, or great disparity between both eyes, so that the visual center can not be like a fusion of two images, poor eyesight is better visual acuity