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Cataracts: What are they, their causes, and how are they formed?
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A cataract is the gradual clouding of the natural lens in our eyes, found right behind the pupil. In a healthy eye, this lens is clear and helps focus light into the retina to create sharp, defined images. Over time, proteins in the lens degrade naturally and clump up; this clumping creates cloudy patches that spread out the light entering the eye, preventing clear images from reaching the brain. While old age is the main cause of cataracts, certain factors such as diabetes, smoking, and UV ray exposure can accelerate this process.
A cataract is the gradual clouding of the natural lens in our eyes, found right behind the pupil. In a healthy eye, this lens is clear and helps focus light into the retina to create sharp, defined images. Over time, proteins in the lens degrade naturally and clump up; this clumping creates cloudy patches that spread out the light entering the eye, preventing clear images from reaching the brain. While old age is the main cause of cataracts, certain factors such as diabetes, smoking, and UV ray exposure can accelerate this process.
How can cataracts affect vision and daily life
Since cataracts develop slowly, the initial symptoms tend to be subtle. However, as the cloudiness expands, it can cause severe effects on vision; many patients suffer from cloudy or blurry vision, as if they were looking through a dirty window. Cataracts also increase light sensitivity, creating halos around vehicle headlights, making it difficult to drive at night. Over time, colors start to fade out, and simple daily tasks such as reading, looking at a screen, and even recognizing faces become more difficult each time.
Cataract treatment and surgery benefits
While strong prescription glasses and brighter lights can help during the initial symptoms, surgery is the only permanent, effective way to restore lost vision. This is a common outpatient procedure where an ophthalmologist surgeon replaces the clouded natural lens with a clear artificial lens called an intraocular lens. Cataract surgery offers multiple benefits, such as restoring vision quality, improved night vision, and improved color perception, helping patients maintain an independent and active lifestyle.
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