The clinical significance is that they can sometimes blurr your vision - this is basically a very early form of a cataract. There is no treatment available except cataract surgery when the lens clouds enough to significantly worsen vision. That's about it - from my perspective it basically means you have an early cataract that will likely worsen over time. You could take lots of anti-oxidant vitamins like A, C, E and wear UV protective sunglasses, control blood sugar and eat a healthy diet and you can perhaps delay the development of cataracts.
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