Cataracts
Cataracts are a common eye condition characterized by clouding of the lens, leading to impaired vision. They can develop slowly over time and may affect one or both eyes. This condition is often related to aging, but other factors can also contribute to its development.
Eyes & Vision- What exactly are cataracts and how do they affect my vision?MedlinePlusMay 2026
A cataract is a clouding of the clear lens inside your eye that blocks light from reaching the back, making vision blurry or dim. Cataracts usually develop slowly and can affect one or both eyes, but they don't spread from one eye to the other.
- Why does the lens in my eye become cloudy with age?MedlinePlusMay 2026
As you age, proteins in your eye's lens clump together and grow larger and thicker over time, causing the cloudiness. This is a normal part of aging, and the lens may also turn yellow or brown, which changes how you see colors.
- How is having cataracts different from other common eye problems like glaucoma or macular degeneration?MedlinePlusMay 2026
Cataracts cloud the lens and block light, while glaucoma damages the nerve in the back of the eye and macular degeneration affects the center of your vision. Each condition affects your eyes differently and requires different treatments.
- Are there any risk factors that make me more likely to develop cataracts sooner than others?MedlinePlusMay 2026
Risk factors include getting older, having an eye injury or surgery, certain medical conditions like diabetes, and prolonged sun exposure. Some people may develop cataracts faster than others depending on these factors.
- What are some early signs I should look out for if my vision is getting worse?MedlinePlusMay 2026
Early signs include blurry or dim vision, difficulty seeing at night, sensitivity to bright light, and seeing colors as faded or yellowed. Your vision may improve temporarily with brighter lighting or new glasses.