Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA.
J Binocul Vis Ocul Motil. 2023 Oct 2;73(4):109-114. Epub 2023 Nov 6.
Unilateral congenital cataracts present multiple barriers in the development of vision and stereoacuity despite the improved visual optics that early surgery, contact lenses and intraocular lenses (IOL) have provided. With better understanding of the latent period (the timeframe in which the abnormal event has no long-term effect on visual development in the deprived eye) and the critical periods (the age range during which developing brains can be altered in a profound and permanent way by abnormal experience) for stereoacuity and amblyopia we can focus our treatment methods to not only improve vision but also develop binocularity. Fifty years ago, it was believed that it was almost impossible for an eye with a unilateral congenital cataract to achieve good visual acuity. Twenty-five years ago, we believed that it was almost impossible for an eye with a unilateral cataract to achieve stereoacuity. It is time to expand our belief that the best that we can do with the eye in unilateral congenital cataract is to create a spare.
尽管早期手术、接触镜和人工晶状体 (IOL) 提供了更好的视觉效果,但单侧先天性白内障在视力和立体视锐度的发展方面仍然存在多种障碍。随着我们对潜伏期(异常事件对剥夺眼视觉发育没有长期影响的时间段)和关键期(大脑在异常经验的深刻和永久性影响下可以发生深刻和永久改变的年龄段)的理解不断加深,我们可以将治疗方法集中在不仅提高视力,而且还能发展双眼视觉。五十年前,人们认为单侧先天性白内障的眼睛几乎不可能获得良好的视力。二十五年前,我们认为单侧白内障的眼睛几乎不可能获得立体视锐度。现在是时候扩大我们的信念了,即我们可以通过单侧先天性白内障的眼睛来实现的最佳效果是创造一个备用视力。