Cataract Causes: What You Need to Know
What Are Cataracts?
Cataracts are a common eye condition, especially as we age. Over time, the natural lens in your eye can become cloudy, making vision blurry or dim.
Inside your eye, the lens is usually clear and flexible. As you get older, proteins in the lens can start to clump together, causing cloudiness that leads to cataracts. This process usually happens slowly over many years.
There are several different types of cataracts. The most common is nuclear sclerosis, where the center of the lens becomes cloudy. Other types, like cortical or posterior subcapsular cataracts, can also develop and affect your vision in different ways.
Cataracts usually develop in both eyes, though one may be worse than the other. It’s common for people to notice changes in their vision at different times for each eye.
Main Causes of Cataracts
Many factors can contribute to cataract development. Understanding these helps you take steps to protect your eyesight.
Aging is the primary cause of cataracts. Most people will develop some cloudiness in their lenses as they get older, typically after age 60.
Certain health problems can make cataracts form faster. Diabetes is one of the most common, but other conditions can also raise your risk.
- Diabetes can cause earlier and faster cataract development.
- High blood pressure and eye diseases like glaucoma may also contribute.
- Some medications, such as long-term steroid use, can increase risk.
Eye injuries or previous surgeries can damage the lens and speed up cataract formation. If you had an injury or needed treatment in the past, regular checkups are important.
Cataracts can sometimes run in families. If your parents or siblings had early cataracts, let our eye doctors know at your exam.
Lifestyle and Environmental Factors
Your daily habits and environment can affect your eyes and your risk for cataracts. Making healthy choices can help protect your vision for years to come.
Too much exposure to sunlight, especially UV rays, can damage your eye’s lens and make cataracts more likely. Wearing sunglasses and hats outdoors is a simple way to lower risk.
- Look for sunglasses that block 100% of UVA and UVB rays.
- Even on cloudy days, UV rays can reach your eyes.
Smoking cigarettes increases free radical damage in your eyes, speeding up how quickly the lens becomes cloudy. Quitting can help protect your sight and your overall health.
A diet low in antioxidants may make cataract formation more likely. Eating foods rich in vitamins C and E, and leafy greens, supports healthy eyes.
Heavy alcohol use can also increase oxidative stress in your body, including in your eyes. Limiting alcohol may reduce your risk of cataract development.
Other Factors and Special Situations
Some less common causes can also play a role. Our team at ReFocus Eye Health North Wales looks at your entire health picture to guide the best treatment for you.
Long-term use of certain medications, especially steroids, can lead to earlier cataract formation. Always share your medication list with your eye doctor.
Exposure to radiation, like from cancer treatments or certain jobs, can increase cataract risk. If you have a history of exposure, regular eye exams are important.
Some babies are born with cataracts due to genetic conditions, infections during pregnancy, or metabolic disorders. Early detection and treatment are key for developing eyesight.
Frequently Asked Questions
Here are answers to some common questions our patients from North Wales, Lansdale, Horsham, and the Greater Philadelphia Region ask about cataracts.
No. While most cataracts develop with age, younger people can develop them after eye injuries, certain diseases, or long-term use of specific medications.
The main signs include blurry vision, faded colors, glare from lights, or difficulty seeing at night. A comprehensive eye exam at ReFocus Eye Health North Wales can determine if cataracts are the cause.
A healthy diet rich in antioxidants like vitamins C and E, leafy greens, and fish may help protect your eyes, but it cannot guarantee prevention. Good nutrition supports overall eye health.
No drops or supplements have been proven to reverse cataracts. Surgery is the only effective treatment once cataracts interfere with daily activities.
No. Cataracts cannot be passed from one person to another. They are caused by changes inside your own eye.
No. Using your eyes for reading or computer work does not cause cataracts. The main causes are aging, medical conditions, and lifestyle factors such as UV exposure and smoking.
We're Here to Help You See Clearly
At ReFocus Eye Health North Wales, our experienced eye doctors use the latest technology and personalized care to protect and restore your vision. If you live in North Wales, or nearby communities in the Greater Philadelphia Region, schedule an appointment to discuss your eye health and explore all your options for clear sight.
I had a great experience; staff was nice and very professional. Dr. Clark informed me I have cataracts. I'm looking forward to seeing better. Thanks Dr. Clark.
Sandra Horn
Been seeing Dr. Barouh since my cataract surgery. She explains everything and I would recommend her to anyone looking for an ophthalmologist.
John Schepis
I would strongly recommend Dr. Clark for cataract surgery. Best surgical experience of my life.
Joe B.
Dr. Barouh is a fantastic doctor. She is thorough and knowledgeable. She addressed all my questions and concerns. Excellent bedside manner!
lisa sheridan
Dr. Barouh is professional but friendly. She explained all aspects of my condition and monitors my progress. Recommend her.
Lee Buzby
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