Although there is a partial loss of vision, macular function is spared, meaning that central vision is still sharp and detailed.

虽然视野部分缺失，但黄斑功能仍得以保留，即中心视力仍然完好。

Right now I have central vision, but I'm seeing the world through a pretty narrow porthole.

现在我有中心视力，但我是通过一个非常狭窄的舷窗看世界。

This small area is the source of the sharp, central vision that you use while reading or focusing on a single point.

这个小区域是您在阅读或专注于一个点时使用的锐利中心视觉的来源。

It's responsible for pretty much all of our useful day to day vision, from our color perception to our high visual detail, to our central vision.

它负责我们几乎所有有用的日常视觉，从我们的颜色感知到我们的高视觉细节，再到我们的中心视觉。

We have an incredibly complex disease known as age-related macular degeneration, or AMD. A disease that affects the central vision with the most common form having no known cure or treatment.

我们有一种极其复杂的疾病，称为年龄相关性黄斑变性或 AMD。一种影响中心视力的最常见形式的疾病，目前尚无已知的治愈方法。

People can also have partial vision loss, where they experience things such as cloudy or fuzzy images from conditions like cataracts, or lose central vision, but maintain a normal peripheral vision like with macular degeneration.

人们也可能有部分视力丧失， 在这种情况下，他们会经历诸如白内障等疾病导致的混浊或模糊图像， 或者失去中心视力， 但保持正常的周边视力，如黄斑变性。