Cataracts: Causes and Cataract Symptoms to Watch Out For

Cataracts are among the leading causes of vision loss in the Philippines and worldwide. At Asian Eye Institute, our doctors provide advanced treatments to help patients restore clear, healthy eyesight.

Providing Comprehensive Eye Care to Cataract Patients in the Philippines

At Asian Eye Institute, you can expect comprehensive care tailored to your needs as a cataract patient. We have eye care professionals who specialize in helping people with cataracts, especially those already losing their vision. Our advanced facilities and technologies will be used for diagnosis and treatment.

What is a Cataract?

Cataracts are a common eye problem in which the eye’s natural lens becomes clouded. It usually develops with age, but other factors can also cause it. Depending on the severity, it can result in partial to total vision impairment as the clouded lenses obstruct the passage of light to the retina.

What are the Symptoms of Cataracts?

Cataracts cause the lens of your eye to become cloudy, making your vision look blurred, dim, or foggy (similar to looking through a frosted window). You may notice:

  • Blurred or cloudy vision
  • Trouble seeing at night or in low light
  • Sensitivity to light and glare (especially from headlights)
  • Seeing halos around lights
  • Faded or yellowed colors
  • Frequent changes in eyeglass prescriptions
  • Double vision in one eye

 

As cataracts progress, everyday tasks such as reading, driving, or recognizing faces can become increasingly difficult.

What Causes Cataracts?

Cataracts primarily develop due to aging, as proteins in the eye’s lens break down and clump together, causing cloudiness. Other causes include eye injuries, certain medications (like steroids), diabetes, prolonged ultraviolet light exposure, past eye surgeries, and genetic factors. These changes affect the lens’s clarity and flexibility, leading to vision impairment.

What are the Types of Cataracts?

The main types of cataracts are:

  • Nuclear cataracts: Affect the central (nucleus) part of the lens, causing yellowing and vision changes.
  • Cortical cataracts: Involve the lens’s outer edges (cortex), often causing glare and blurred vision.
  • Posterior subcapsular cataracts: Form at the back of the lens, often affecting near vision and causing glare.
  • Less common types include congenital, traumatic, anterior subcapsular, and posterior polar cataracts.

 

Each type affects vision differently and may progress at varying rates.

At What Age Do Cataracts Usually Start?

Cataracts most commonly begin to develop after age 50, though subtle changes in the lens can start as early as age 40. Symptoms may not become noticeable until later, often after age 60. The risk of developing cataracts increases with age, and most people over 65 will have some degree of cataract formation.

Who Is at Risk of Cataracts?

Several factors can increase your risk of developing cataracts:

  • Age: risk rises significantly after the age of 60
    Family history
  • Excessive UV exposure (exposure to sunlight without eye protection)
  • Diabetes and other health conditions, especially poorly controlled blood sugar
  • Smoking and excessive alcohol use
  • Use of certain medications such as steroids
  • Previous eye injury or surgery
  • Nutritional deficiencies, including low intake of antioxidants
  • Obesity and hypertension

How Will My Eye Doctor Check for Cataracts?

Your eye doctor will perform a comprehensive eye exam, which may include:

  • Visual acuity test: Reading letters on an eye chart to measure the sharpness of vision
  • Slit-lamp exam: Using a special microscope with a bright light to examine the structures at the front of your eye, including the lens
  • Dilated exam: Using special eye drops to widen (dilate) your pupils, allowing the doctor to thoroughly examine the back of your eye and assess the extent of cataract clouding
  • Discussion of symptoms: Asking about vision changes, glare, or night driving difficulties

 

These tests will help your doctor diagnose cataracts and determine their impact on your vision.

How Do You Treat Cataracts?

Without proper treatment, this condition can cause patients to lose their eyesight, which can only be reversed through surgery. During the operation, the clouded lens will be removed and replaced with artificial intraocular lenses. The procedure is incredibly safe and fast, with a high chance of success.

How Can You Prevent Cataracts?

While you cannot completely prevent cataracts, you can lower your risk or delay their development by:

  • Wearing sunglasses with 100% UV protection when outdoors
  • Eating a diet rich in fruits, vegetables, and antioxidants (vitamins C and E, lutein, and zeaxanthin)
  • Not smoking and limiting alcohol consumption
  • Managing chronic conditions like diabetes
  • Maintaining a healthy weight and regular exercise
  • Getting regular eye exams for early detection

What are the Treatment Options for Cataracts?

Cataract treatment typically begins with a comprehensive eye exam to assess the severity and type of cataract. Surgery is the most effective option, involving the removal of the cloudy lens and replacement with a clear artificial intraocular lens (IOL).

 

Depending on the type of cataract, your doctor may recommend specialized techniques or premium lenses. Early cataracts can be managed with glasses, but surgery remains the only long-term solution to restore clear vision.

an ophthalmologist doing a comprehensive eye exam

Comprehensive Eye Exam

cataract surgery

Cataract Surgery

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