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There are many different types of eye disorders, and two of the most common are myopia and hypermetropia. Though they may sound similar, these two disorders are actually quite different. In this blog post, we will discuss 5 key differences between myopia and hypermetropia. We will also explain what each disorder is and how it can be treated. So if you’re curious about the differences between myopia and hypermetropia, read on!
Myopia
Myopia, also known as nearsightedness, is a refractive error in which objects close to the eye are clearly seen, but objects farther away are blurry. Myopia is caused by an elongation of the eyeball, which causes light to focus in front of the retina instead of any appearing blurred. Myopia occurs when the eyeball is too long or when the cornea, the clear front surface of the eye, has too much curvature.
Types of Myopia
Pathologic Myopia: Pathologic myopia is a type of myopia that is caused by an underlying disease or condition. Some common causes of pathologic myopia include retinal detachment, uveitis, and tumours.
School-age myopia: School-age myopia is the most common type of myopia. It typically develops between the ages of 5 and 12.
Congenital Myopia: Congenital myopia is a type of myopia that is present at birth.
Axial Myopia: Axial myopia is a type of myopia that occurs when the eyeball is too long.
Refractive Myopia: Refractive myopia is a type of myopia that occurs when the cornea is not curved enough.
Hypermetropia
Hypermetropia, also known as farsightedness, is a condition of the eye where distant objects are seen more clearly than close ones. It occurs when the eyeball is too short or when the cornea has too little curvature. People with hypermetropia often squint or frown in order to see better.
Types of Hypermetropia
Pathologic Hypermetropia: Pathologic hypermetropia is a type of hypermetropia that is caused by an underlying disease or condition. Some common causes of pathologic hypermetropia include cataracts, glaucoma, and diabetes.
Congenital Hypermetropia: Congenital hypermetropia is a type of hypermetropia that is present at birth.
Refractive Hypermetropia: Refractive hypermetropia is a type of hypermetropia that occurs when the cornea is too curved.
Differences between Myopia and Hypermetropia
The differences between myopia and hypermetropia are based on definition, another name, size of the eyeball, causes, formation of image, symptoms, treatment, and, the focal length of the eyeball.
- Definition: Myopia is a refractive error where objects in the distance are blurry due to the light rays being focused in front of the retina. Hypermetropia is a refractive error where objects up close are blurry due to the light rays being focused behind the retina.
- Another name: Myopia is also known as nearsightedness and hypermetropia is also known as farsightedness.
- Size of the eyeball: Myopia is caused by an eyeball that is too long. Hypermetropia is caused by an eyeball that is too short.
- Causes: Myopia is caused by the light rays being focused in front of the retina. Hypermetropia is caused by the light rays being focused behind the retina.
- Formation of image: Myopia results in a blurry image because the light rays are focused in front of the retina. Hypermetropia results in a blurry image because the light rays are focused behind the retina.
- Symptoms: Myopia symptoms may include squinting, eye fatigue, and headaches. Hypermetropia symptoms may include eye fatigue, headaches, and difficulty reading small print.
- Treatment: Myopia can be treated with glasses, contact lenses, or surgery. Hypermetropia can be treated with glasses, contact lenses, or surgery.
- The focal length of the eyeball: Myopia occurs when the focal length of the eyeball is too long. Hypermetropia occurs when the focal length of the eyeball is too short.
Conclusion
Myopia and hypermetropia are two different types of refractive errors. Myopia is when someone has trouble seeing objects that are far away, while hypermetropia is when someone has trouble seeing objects that are close up. A regular eye examination can help to diagnose and treat myopia and hypermetropia. Treatment for myopia typically involves glasses, contact lenses, or refractive surgery. Treatment for hypermetropia typically involves glasses or contact lenses. Both conditions can be corrected with eyeglasses or contact lenses. Most people will eventually develop one of these conditions as they age.
