Ophthalmology
Hope special glasses can slow surging myopia in children
Two years ago, Paul's teacher noticed that the 10-year-old boy could no longer see anything on the board at the front of the class.
Apr 17, 2023
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News tagged with contact lenses
Ophthalmology
Contact lenses to treat dry eye syndrome
A collaborative team from the Terasaki Institute for Biomedical Innovation (TIBI) has developed a contact lens prototype that is specifically designed to prevent contact lens-induced dry eye (CLIDE). The lens alleviates this ...
Jan 30, 2023
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3
Ophthalmology
Researchers find that chromatically simulated myopic blur may be useful as a myopia control therapy
In the last 50 years alone, the number of Americans who are nearsighted has increased from about 25% to 42%, and researchers predict this trend will continue in the future. University of Alabama at Birmingham researchers ...
Jan 20, 2023
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Ophthalmology
Many older adults lack clear eyesight, even with glasses, finds study
New research shows that 28% of people over the age of 71 have a visual impairment, even while wearing their regular glasses, contact lenses, or other visual aids.
Jan 12, 2023
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57
Ophthalmology
'Smart contact lens' to detect eye infections
A pioneering smart contact lens to test for eye infections in a quick, non-invasive way is being developed.
Dec 5, 2022
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4
Genetics
Genetics combined with long years of schooling can lead to nearsightedness in children
Researchers have identified five genetic variants that increasingly raise a person's risk of becoming nearsighted the longer they stay in school. A team led by Jeremy Guggenheim of Cardiff University, United Kingdom, published ...
Nov 17, 2022
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251
Ophthalmology
Less than half of people over 50 worldwide have received glasses or contact lenses needed to correct refractive error
New research published today in The Lancet Global Health reveals that less than half of people over 50 worldwide have received spectacles or contact lenses needed to correct refractive error, the world's most common visual ...
Oct 11, 2022
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19
Health
Reusable contact lenses more than triple risk of rare preventable eye infection
People who wear reusable contact lenses are nearly four times as likely as those wearing daily disposables to develop a rare sight-threatening eye infection, finds a study led by UCL and Moorfields researchers.
Sep 22, 2022
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85
Health
Take care when handling, storing your contact lenses
Contact lenses can be indispensable for those with poor vision, but if they aren't properly cleaned and stored you run the risk of serious eye infections, experts say.
Sep 20, 2022
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44
Diseases, Conditions, Syndromes
Albinism: lack of pigment plagued by deadly myths
Albinism, caused by a lack of melanin, the pigment that colours skin, hair and eyes, is a genetic anomaly that concerns hundreds of thousands of people across the globe, particularly in Africa.
Jun 11, 2022
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Contact lens
A contact lens (also known simply as a contact) is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye. Modern soft contact lenses were invented by the Czech chemist Otto Wichterle and his assistant Drahoslav Lím, who also invented the first gel used for their production.
Contact lens usually serve the same corrective purpose as glasses, but are lightweight and virtually invisible—many commercial lenses are tinted a faint blue to make them more visible when immersed in cleaning and storage solutions. Some cosmetic lenses are deliberately colored to alter the appearance of the eye.
It has been estimated that 125 million people use contact lenses worldwide (2%), including 28 to 38 million in the United States and 13 million in Japan. The types of lenses used and prescribed vary markedly between countries, with rigid lenses accounting for over 20% of currently-prescribed lenses in Japan, Netherlands and Germany but less than 5% in Scandinavia.
People choose to wear contact lenses for many reasons, often due to their appearance and practicality. When compared to spectacles, contact lenses are less affected by wet weather, do not steam up, and provide a wider field of vision. They are more suitable for a number of sporting activities. Additionally, ophthalmological conditions such as keratoconus and aniseikonia may not be accurately corrected with glasses.
This text uses material from Wikipedia, licensed under CC BY-SA
