What Are Cataracts? Symptoms, Causes, Diagnosis, and Treatment Options

What Are Cataracts? Symptoms, Causes, Diagnosis, and Treatment Options

Cataracts occur when the normally clear lens inside the eye becomes cloudy. This clouding prevents light from passing through the lens properly, leading to blurred or dim vision. Cataracts develop gradually and are one of the most common causes of vision changes as people age, although they can occur for other reasons as well.

- A gradual loss of color vision.

- A stage where it is easier to see without glasses... a second sight.

Currently, there is no proven method to prevent cataracts from forming or to make the

cloudy lens clear after a cataract has developed. Your optometrist can prescribe changes in

your glasses or contact lenses to help you see more as your cataracts develop.

Ultimately, if your cataracts impair your daily activities, your Optometrist can refer you to

an eye surgeon who may recommend surgical removal of the cataract. Cataract surgery is

relatively uncomplicated and has a 95% success rate. When your eye’s natural lens is

removed during cataract surgery, an intraocular lens implant may need to be inserted

during surgery to achieve clear, comfortable vision. This implant will serve as a “new lens”.

Whether it’s contact lenses, glasses, or an intraocular lens implant to treat cataracts, regular

optometric follow up care is important in making sure you always maintain good vision and

eye health at all times.

Symptoms

• Blurry, hazy, or foggy vision

• Increased sensitivity to glare and bright lights

• Halos around headlights or streetlights at night

• Colors appearing faded or yellowed

• Frequent changes in eyeglass or contact lens prescriptions

• Difficulty reading in low-light conditions

Causes and Risk Factors

Cataracts are most often associated with aging, but several factors can increase risk:

• Diabetes

• Prolonged exposure to ultraviolet (UV) light

• Eye injuries or previous eye surgery

• Long-term use of steroid medications

• Smoking

• Family history of cataracts

Diagnosis and When to See a Doctor

Cataracts are diagnosed during a comprehensive eye examination. This typically includes a visual acuity test, a slit-lamp exam to evaluate the lens, and a dilated eye exam to assess the overall health of the eye.

You should schedule an eye exam if you notice persistent blur, glare while driving at night, or difficulty performing daily visual tasks.

Treatment and Management

In the early stages, stronger glasses, brighter lighting, and anti-glare lenses may help manage symptoms. When cataracts begin to interfere with daily life, cataract surgery is recommended. This procedure involves removing the cloudy lens and replacing it with a clear artificial lens.

Prevention and Outlook

While cataracts cannot always be prevented, protecting your eyes from UV light, maintaining healthy blood sugar levels, and not smoking can help reduce risk.

Summary and Next Steps

Cataracts are common and highly treatable. If you are experiencing vision changes, schedule a comprehensive eye exam to determine the cause and explore your treatment options.

This article is for educational purposes and does not replace a professional eye examination.