zonular cataract

例句：

1. 1. The zonular fibers in the eye are responsible for maintaining the shape of the lens.
   眼睛中的晶状体纤维负责保持晶状体的形状。
2. 2. The zonular membrane is a thin layer that covers the surface of the lens and helps to support it.
   晶状体囊膜是覆盖晶状体表面的一层薄膜，有助于支撑它。
3. 3. The zonular fibers in the eye are essential for maintaining the shape of the lens, which is crucial for vision.
   眼睛中的晶状体纤维对于保持晶状体的形状至关重要，这对于视力来说是必不可少的。