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The difference between astigmatism and myopia is most easily recognized based on the symptoms experienced by the sufferer. Even so, both of these conditions cause the sufferer to experience visual impairment. By recognizing the difference between the two, proper treatment can be done.

Basically, the difference between astigmatism and myopia can be recognized from the symptoms and causes that occur in the sufferer. Myopia or nearsightednessis a condition when someone has difficulty seeing objects that are far away because the incoming light does not fall directly on the retina.

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Meanwhile, cylinder occurs due to the asymmetrical shape of the cornea or lens of the eye, causing vision to become blurry or appear shadowy, both from near and far. Although both are refractive disorders, the symptoms, causes, and treatment of cylinder and minus eyes are different.

Various Differences Between Cylinder and Minus 

Here are some differences between cylinder and minus:

1. Based on the cause

The difference between cylinder and minus can be recognized based on the cause. Minus eyes are generally caused by the shape of the eyeball being too long or the eye lensand the cornea being too curved, so that light is focused faster than it should. This condition can occur due to hereditary factors from the family.

In addition, the habit of looking at close objects for a long time, such as reading books, staring at computer screens, or playing with cellphones without a break, can accelerate the development of myopia, especially in children and adolescents.

Meanwhile, astigmatism occurs when the surface of the cornea or lens of the eye has an asymmetrical shape. Generally, people with astigmatism have an oval or egg-shaped cornea or lens, so that incoming light is refracted to more than one point on the retina.

There are several risk factors that can trigger astigmatism, such as heredity from the family, eye injuries, post-eye surgery complications, or certain diseases of the cornea.

2. Based on symptoms

In addition to the cause, the difference between cylinder and minus can also be known based on the symptoms experienced by the sufferer. People with myopia will usually experience the following:

  • Difficulty seeing objects from a distance
  • Blurred vision when seeing objects from a distance
  • Clear vision when seeing objects from close range
  • Eyes squint every time you see an object from a distance
  • Head feels dizzy
  • Eyes get tired quickly

Meanwhile, people with cylindrical eyesusually experience the following conditions:

  • Difficulty seeing objects from a distance near or far
  • Blurred, shadowy, and distorted vision (objects appear in more than one focus) when viewing objects from a distance or near
  • Eyes strained and easily tired
  • Head feels dizzy
  • Difficulty seeing objects at night
  • Squinting when looking at objects from any distance

3. Based on the treatment

Treatment for nearsightedness and cylindrical eyesare also different, depending on the condition, age, and activity needs of the sufferer. Here are some of them:

Glasses
Using glassesis the most common method to overcome astigmatism and nearsightedness. Minus (concave) lenses are used to help focus light right on the retina, while cylindrical lenses are used to adjust the direction of light refraction according to the asymmetrical shape of the cornea.

If both disorders occur together, doctors usually prescribe glasses with a combination of lenses.

Contact lenses
In addition to glasses, contact lenses can also be an option if the sufferer feels uncomfortable wearing glasses. People with myopia will usually be prescribed special contact lenses for myopia, one of which is ortho-k.

Meanwhile, people with astigmatism will be prescribed toric lenses (toric lenses) which have a special shape and rotation point to fit the curvature of the sufferer's cornea.

LASIK surgery
For more permanent results, refractive surgery procedures, such as LASIK, can be chosen to reshape the cornea so that light can be focused precisely on the retina. This surgery can treat nearsightedness, astigmatism, or both at once. However, this procedure can also pose risks, such as dry eyes, corneal fold disorders, sensitivity to light, or failure of the operation. Therefore, consult a doctor first to ensure whether or not you are eligible to undergo this procedure and prevent these risks. By knowing the difference between astigmatism and minus, proper treatment can be carried out so that the condition does not interfere with daily activities. If you or your family experience complaints that point to symptoms of astigmatism or nearsightedness, you should consult a doctor via Chat Bersama Dokter.

That way, the doctor can determine the cause and provide advice that suits your or your family's condition, including further examinationat the nearest hospital.

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