Causes of Cataract

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8 Questions

What is the most common cause of cataract?

Age

What is a symptom of cataract?

Sensitivity to light

What is a diagnostic test for cataract?

Visual acuity test

What is a treatment option for cataract?

Glasses

What type of surgery is commonly used to treat cataract?

Phacoemulsification

What is implanted during cataract surgery?

Intraocular lens (IOL)

What increases the risk of cataract?

Smoking

What is a risk factor for developing cataract?

Family history

Study Notes

Causes of Cataract

  • Age: Most common cause of cataract, affecting people over 60 years old
  • Genetics: Family history and inherited disorders can increase the risk of cataract
  • Diabetes: High blood sugar levels can cause cataract
  • Injury: Eye injury or trauma can cause cataract
  • Medications: Prolonged use of steroids and other medications can increase the risk of cataract
  • UV radiation: Prolonged exposure to UV radiation can cause cataract
  • Smoking: Smoking can increase the risk of cataract

Symptoms of Cataract

  • Blurred vision: Difficulty seeing objects clearly
  • Double vision: Seeing two images of a single object
  • Sensitivity to light: Glare from lights and difficulty with night driving
  • Fading colors: Colors appear less vibrant and faded
  • Difficulty reading: Difficulty reading or performing daily tasks
  • Eye pain: Mild to severe eye pain

Diagnosis of Cataract

  • Visual acuity test: Measures the sharpness of vision
  • Dilated eye exam: Examines the retina and optic nerve
  • Slit-lamp exam: Examines the front of the eye
  • Tonometry: Measures the pressure inside the eye
  • Refraction: Measures the prescription of the eye

Treatment Options for Cataract

  • Glasses: Corrects blurred vision
  • Contact lenses: Corrects blurred vision
  • Anti-glare sunglasses: Reduces glare from lights
  • Magnifying lenses: Enhances near vision

Surgery for Cataract

  • Phacoemulsification: Most common type of cataract surgery, uses ultrasound to break up the cataract
  • Extracapsular surgery: Removes the cataract in one piece
  • Intracapsular surgery: Removes the cataract and the lens capsule
  • Lens implantation: Replaces the natural lens with an artificial lens (IOL)
  • Recovery: Typically takes a few weeks to recover from cataract surgery

Causes of Cataract

  • Affects people over 60 years old, most common cause of cataract
  • Family history and inherited disorders increase the risk
  • High blood sugar levels can cause cataract
  • Eye injury or trauma can cause cataract
  • Prolonged use of steroids and other medications increase the risk
  • Prolonged exposure to UV radiation causes cataract
  • Smoking increases the risk of cataract

Symptoms of Cataract

  • Difficulty seeing objects clearly, blurred vision
  • Seeing two images of a single object, double vision
  • Glare from lights and difficulty with night driving, sensitivity to light
  • Colors appear less vibrant and faded
  • Difficulty reading or performing daily tasks
  • Mild to severe eye pain

Diagnosis of Cataract

  • Measures the sharpness of vision, visual acuity test
  • Examines the retina and optic nerve, dilated eye exam
  • Examines the front of the eye, slit-lamp exam
  • Measures the pressure inside the eye, tonometry
  • Measures the prescription of the eye, refraction

Treatment Options for Cataract

  • Corrects blurred vision, glasses
  • Corrects blurred vision, contact lenses
  • Reduces glare from lights, anti-glare sunglasses
  • Enhances near vision, magnifying lenses

Surgery for Cataract

  • Most common type of cataract surgery, uses ultrasound to break up the cataract, phacoemulsification
  • Removes the cataract in one piece, extracapsular surgery
  • Removes the cataract and the lens capsule, intracapsular surgery
  • Replaces the natural lens with an artificial lens (IOL), lens implantation
  • Typically takes a few weeks to recover from cataract surgery, recovery

Identify the various factors that contribute to the development of cataract, including age, genetics, diabetes, and more. Learn about the risk factors and causes of cataract.

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