Clalen Guide

In normal eyes,
light refracts through the cornea and crystalline lens and converges on the retina to create images of objects.

However, if there is something wrong with the refraction, the image is blurred or distorted, and you have abnormal vision such as myopia, hyperopia, and astigmatism as a result.

What is Myopia?
The term “Myopia" or "nearsightedness" is an abnormal vision in which objects nearby can be clearly visible but objects far from you look dim. Ophthalmological exams for abnormal vision and the correction of it with appropriate glasses or lenses are recommended. Please try to avoid wearing glasses that do not fit in, working in the dark, or watching close objects for a long time.

What is Hyperopia?
In contrast to myopia, the term “Hyperopia" or “farsightedness" is an abnormal vision in which objects close to you are blurred, but at a distance, they are clearly visible. Adequate glasses or lenses are recommended to be worn and magnifying lenses may be required in case you find presbyopia in the forties.

What is Astigmatism?
Astigmatism is an abnormal vision in which objects are not clearly visible as a result of the inability to concentrate the lights from the outside due to the uneven surface of the cornea or crystalline lens. Please try to avoid wearing glasses that do not fit in, working in the dark, watching close objects for a long time, or reading in a moving car.

What is Presbyopia?
If you are over 40 years old, you may start to feel that the object you want to see needs to be farther away to be seen clearly when you are reading a menu or newspaper. This is called “Presbyopia" Accurate examination and consultation of experts are required as this is a symptom that can be confused with the commonly known “Hyperopia”

CAUTION

  • It is better to correct your eyesight after making an accurate judgment on whether you are nearsighted, farsighted, or astigmatic.
  • For accurate checkups, it is best to have a professional checkup by eye experts.