Bedell Harold E
College of Optometry and Center for Neuro-engineering and Cognitive Science, University of Houston, TX 77024-2020, USA.
Semin Ophthalmol. 2006 Apr-Jun;21(2):91-5. doi: 10.1080/08820530600614181.
One way to assess the influence of retinal image motion on visual functioning in congenital nystagmus (CN) is to examine the effects of comparable image motion in observers with normal vision. A second approach is to evaluate visual functioning in subjects with CN when the retinal image motion is reduced. Using these approaches, we determined that spatial contrast sensitivity and visual acuity are not limited by the parameters of retinal image motion in some subjects with CN, but rather by a form of amblyopia. Clinical evidence from patients with bilateral refractive amblyopia suggests that a gradual improvement of visual acuity may be possible in persons with CN, if the optimal refractive correction is worn and parameters of the retinal image motion undergo long-term amelioration.
评估视网膜图像运动对先天性眼球震颤（CN）视觉功能影响的一种方法是，在视力正常的观察者中检查类似图像运动的效果。第二种方法是，当视网膜图像运动减少时，评估CN患者的视觉功能。通过这些方法，我们确定，在一些CN患者中，空间对比敏感度和视敏度不受视网膜图像运动参数的限制，而是受一种弱视形式的限制。来自双侧屈光性弱视患者的临床证据表明，如果佩戴最佳屈光矫正眼镜，并且视网膜图像运动参数得到长期改善，CN患者的视敏度可能会逐渐提高。
