Hypermetropia
Hypermetropia
Hypermetropia (pronounced: /ˌhaɪpərmɪˈtrəʊpiə/), also known as farsightedness or long-sightedness, is a common refractive error where distant objects can be seen clearly, but close ones appear blurry. The term originates from the Greek words 'hyper' meaning 'over' and 'metropia' meaning 'measure of the eye'.
Causes
Hypermetropia is caused when the eye does not bend or refract light properly to a single focus to see images clearly. In hypermetropia, the eye is shorter than normal or has a cornea that is too flat, so that light focuses behind the retina.
Symptoms
Common symptoms of hypermetropia include difficulty focusing on near objects, eye strain, fatigue, and headaches after close work. A basic eye examination can confirm hypermetropia.
Treatment
Treatment options for hypermetropia include prescription glasses, contact lenses, and refractive surgery. Refractive surgery includes procedures like LASIK and PRK.
Related Terms
- Astigmatism: A condition in which the cornea or lens has an irregular shape, causing blurred vision.
- Myopia: Also known as nearsightedness, a condition where the eye sees near objects clearly, while distant objects appear blurry.
- Presbyopia: A condition that affects the eye's ability to focus, often occurring with age.
See Also
External links
- Medical encyclopedia article on Hypermetropia
- Wikipedia's article - Hypermetropia
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