Unveiling the causes of cataracts: Understanding the triggers
Cataracts, a common vision impairment, affect millions globally, particularly in older adults. While often linked to ageing, various factors can accelerate or contribute to their development. This post aims to unveil the causes of cataracts and help you understand the triggers.
Ageing: The Primary Culprit
The most prevalent cause of cataracts is ageing. As we age, the proteins in our eye’s natural lens can begin to clump together, creating a cloudy area. This process usually starts around the age of 40, with symptoms often appearing later in life. The gradual clouding of the lens leads to the blurred, dim vision characteristic of cataracts.
Genetic Factors: A Familial Connection
Genetics can play a role. If your family has a history of cataracts, you might be more prone to developing them. Understanding your family’s eye health history can help you and your eye doctor anticipate and monitor for signs.
Medical Conditions: Beyond Just the Eyes
Certain medical conditions, particularly diabetes, can increase the risk of cataracts. Diabetics are often prone to developing cataracts at an earlier age due to fluctuations in blood sugar levels affecting the eyes.
Environmental and Lifestyle Factors
Exposure to ultraviolet sunlight, smoking, and poor nutrition are significant environmental and lifestyle triggers. Prolonged UV exposure can damage the proteins in the lens, while smoking introduces harmful toxins that can affect eye health. A diet lacking in antioxidants can also leave the eyes vulnerable.
Medications and Other Factors
Certain medications, particularly corticosteroids, can contribute to cataract development. Additionally, a history of eye injuries or surgeries can increase the risk.
Cataracts are a multifactorial condition influenced by ageing, genetics, health, environment, lifestyle, and more. Understanding these triggers is crucial for prevention and early intervention. Regular eye exams are vital in detecting cataracts early.
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Hello, I’m Lucia Pelosini MD, your eye surgeon in Surrey & Kent
My vision is to provide my patients with warm and personalised guidance through their cataract surgery journey from start to finish. I run a highly individualized service to treat discerning patients with presbyopia (aging eyes) and cataracts who want the best treatment and technology available.
Ms. Lucia Pelosini
Consultant Ophthalmic Surgeon,
MD, MRCSEd, FRCOphth, CertLRS
