Hyperopia
Hyperopia
Hyperopia (pronounced: /ˌhaɪpəˈroʊpiə/), also known as farsightedness or longsightedness, is a common type of refractive error where distant objects may be seen more clearly than objects that are near.
Etymology
The term "hyperopia" comes from the Greek words "hyper" meaning "over" and "ops" meaning "eye". This term was first used in the late 19th century.
Definition
Hyperopia is a condition of the eye where the light that comes in does not directly focus on the retina but behind it, sometimes due to the length of the eyeball or the shape of the cornea. This causes close objects to appear blurry while far objects may appear normal.
Symptoms
Common symptoms of hyperopia include difficulty focusing on near objects, eye strain, headache, and squinting or feeling fatigued when doing work at close range.
Causes
Hyperopia is often present from birth and is hereditary. Most children are born with hyperopia, but they can often outgrow the condition as their eyes develop into the correct shape.
Treatment
Hyperopia can be corrected with glasses or contact lenses. In some cases, surgery may be an option.
Related Terms
External links
- Medical encyclopedia article on Hyperopia
- Wikipedia's article - Hyperopia
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