Far-sightedness
Far-sightedness
Far-sightedness, also known as hyperopia (== Template:IPA ==
The Template:IPA (International Phonetic Alphabet) is a system of phonetic notation based primarily on the Latin alphabet. It was devised by the International Phonetic Association in the late 19th century as a standardized representation of the sounds of spoken language.
Pronunciation
The pronunciation of the term "IPA" is /aɪ piː eɪ/ in English.
Etymology
The term "IPA" is an acronym for the International Phonetic Alphabet. The International Phonetic Association, founded in 1886, created the IPA to provide a single, universal system for the transcription of spoken language.
Related Terms
- Phonetic notation: A system used to visually represent the sounds of speech. The IPA is one type of phonetic notation.
- Phonetics: The study of the physical sounds of human speech. It is concerned with the physical properties of speech sounds (phonemes), and the processes of their physiological production, auditory reception, and neurophysiological perception.
- Phonology: The study of the way sounds function within a particular language or languages. While phonetics concerns the physical production, acoustic transmission and perception of the sounds of speech, phonology describes the way sounds function within a particular language or languages.
- Transcription (linguistics): The systematic representation of spoken language in written form. The source of the words transcribe and transcription, the term means "to write across" in Latin, and it's the process of converting spoken language into written form. In linguistics, this is often done using the IPA.
External links
- Medical encyclopedia article on Far-sightedness
- Wikipedia's article - Far-sightedness
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski), 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 "opia" meaning "vision", thus "over vision". The term "far-sightedness" is a direct translation of the condition, indicating the ability to see far objects more clearly than near ones.
Definition
Far-sightedness is a condition of the eye where the light that comes in does not directly focus on the retina but behind it, sometimes because the eye is too short or the cornea is not curved enough. This causes close objects to appear blurry while far objects may appear clear.
Symptoms
Symptoms of far-sightedness include difficulty focusing on near objects, eye strain, fatigue, and headaches after close work, blurry vision at a close range, and aching or burning eyes.
Related Terms
- Presbyopia: A condition where the eye exhibits a progressively diminished ability to focus on near objects with age.
- Myopia: Also known as near-sightedness, a condition of the eye where the light that comes in does not directly focus on the retina but in front of it, causing the image that one sees when looking at a distant object to be out of focus, but in focus when looking at a close object.
- Astigmatism: A type of refractive error in which the eye does not focus light evenly on the retina.
Treatment
Treatment options for far-sightedness include prescription glasses or contact lenses, and various types of refractive surgery such as LASIK and PRK.
External links
- Medical encyclopedia article on Far-sightedness
- Wikipedia's article - Far-sightedness
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski