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It's very hard to use one single definition to define a cataract. The closest one would be that it's a clouding of the lens of your eye. When clear and healthy, your eye has no problem collecting visual data. All that changes when the clouding takes over the eyeball. In the beginning, symptoms are unnoticeable. It appears sporadically, without any schedule or frequency. You'll get red eyes more and more often, and then things will be blurrier than ever. When a cataract advances, the black eye lens turns into a milky-colored one. Usually, in such cases, there is a high chance of blindness. Cataracts are the number one cause of blindness in the world.

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1. Yellowish or brown eyes

Cataracts cause many changes in your eyes, and this is perhaps the most evident one. The least serious cases manifest themselves through yellow shades. The most serious ones are brownish. Because proteins cloud in your eyes due to the lens clouding, they can have a certain reflection to them. This is already a sign that the cataract is on its way to getting serious. If you don't act on it, the color will become darker and darker, and your vision will be more impaired every day. In extreme cases, vision gets reduced to only distinguishing between light and dark.

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