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Astigmatism

Overview

Astigmatism is a common refractive error of the eye that affects how light rays focus on the retina. Normally, the cornea and lens of the eye are smooth and curved equally in all directions, like the surface of a basketball. In astigmatism, the cornea or lens is curved more steeply in one direction than in the other, like the surface of a rugby ball. This irregular curvature causes light to focus unevenly, leading to blurred or distorted vision at all distances.

Causes

Astigmatism is not typically considered a disease; rather, it's a common refractive error of the eye. There isn't a single known cause of astigmatism, but it's believed to be primarily influenced by the shape of the cornea or lens. Some factors that may contribute to the development of astigmatism include:

  • Genetics
  • Irregular shape of the cornea or lens
  • Eye injuries or surgeries
  • Keratoconus
  • Certain conditions
  • Symptoms

  • Blurred or distorted vision
  • Eyestrain
  • Headaches
  • Difficulty with night vision
  • Squinting
  • Eye discomfort
  • Treatment: Modern Medicine

  • Eyeglasses
  • Contact lenses
  • Refractive surgery
  • Orthokeratology (Ortho-K)
  • Refractive lens exchange
  • Combination treatments
  • Treatment: Traditional Medicine

  • Eye exercises
  • Proper lighting
  • Eye relaxation techniques
  • Nutritional supplements
  • Hydration
  • Warm compresses
  • Good posture
  • Avoiding eye strain
  • Caution

  • Consultation with an eye care professional
  • Risk of exacerbating symptoms
  • Safety concerns
  • Limitations of home remedies
  • Prevention

  • Regular eye exams
  • Eye protection
  • Healthy lifestyle choices
  • Proper ergonomics
  • Limit screen time

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