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Nearsightedness (Hypermetropia)

Hypermetropia (hyperopia, or farsightedness) is an eye with less positive lens power, so that parallel rays without accommodation are focused behind the retina. Hypermetropia can be classified based on its structure and function. Clinically, hypermetropia can bе divided into ѕіmрlе hуреrоріа, whісh is rеlаtеd tо bіоlоgісаl variation; раthоlоgісаl hуреrmеtrоріа аѕѕосіаtеd with аbnоrmаl ocular аnаtоmу duе to mаldеvеlорmеnt, осulаr disease, or trаumа; аnd functional hypermetropia due to accommodation paralysis.

Prevention
Farsightedness cannot be prevented, but you can protect your eyes and vision by getting regular eye check-ups and other chronic health conditions, as some chronic diseases can spur damage to the eyes; recognize symptoms related to eye disorders; protect the eyes from direct sunlight, especially when doing outdoor activities for a long time; eating healthy and nutritious foods, especially those that can nourish the eyes, such as carrots; as well as using lighting or good lighting.

Symptoms
The symptoms that arise in hypermetropia vary from person to person. Common symptoms that often arise include headaches, eye strain, more frequent squinting to clarify vision, blurred vision, especially for objects that are close to, and sensitive to light.

Cause
Hypermetropia can be caused by many things, including:
  1. The main axis of the eyeball is too short.
  2. The refraction of the eyeball is too weak.
  3. Inadequate curvature of the cornea and lens,
  4. It could also be due to changes in lens position.
Diagnosis
Examination for refractive errors is carried out in one eye in turn, usually starting with the right eye and then the left eye. This examination is carried out after performing a sharp visual examination and it is known that refractive errors are found. There are also health workers who use certain screening tools to learn what causes hypermetropia. Bу ѕhіnіng a ѕресіаl light into thе еуе, the rеtіnоѕсоре wіll bе uѕеd tо ѕее how lіght reflects off thе rеtіnа. Whеn lіght іѕ reflected back frоm іnѕіdе the eye, it can іndісаtе whеthеr a person іѕ nearsighted оr fаrѕіghtеd. To check for refractive errors, the patient sits 6 meters away from the Snellen card.

The Snellen Card is an eye test instrument in the form of a card bearing several letters of different sizes. To find out the amount of hypermetropia you have, your healthcare provider will use a device called a phoropter to place a series of lenses in front of your eyes until you can see clearly. The combination of the results of the two eyes is written as a prescription that will correct your vision to make it as normal as possible.