News tagged with contact lenses
If your contact lenses are causing you discomfort, simply switching to a different type of contact lens or lens care product may bring improvement, reports a study, " Effect of Lens and Solution Choice on the Comfort of Contact ...
Ophthalmology May 01, 2013 | not rated yet | 0
By middle age, most people have age-related declines in near vision (presbyopia) requiring bifocals or reading glasses. An emerging technique called hyperopic orthokeratology (OK) may provide a new alternative for restoring ...
Ophthalmology Apr 01, 2013 | 5 / 5 (2) | 0
A contact lens technique called overnight orthokeratology (OK) brings rapid improvement in vision for nearsighted patients. Now a new study shows that OK treatment works mainly by flattening the front of the cornea, reports ...
Ophthalmology Mar 04, 2013 | 4 / 5 (1) | 0
For people using 30-day extended-wear/continuous-wear (EW/CW) contact lenses, replacing lenses at night doesn't lower the risk of complications compared to changing lenses monthly, suggests a study – "The Effect of Daily ...
Ophthalmology Dec 10, 2012 | not rated yet | 0
(HealthDay)—Common shortcuts people take when caring for their contact lenses could have serious consequences, such as infections or ulcerations, according to an eye disease expert.
Ophthalmology Nov 24, 2012 | not rated yet | 3
Modern contact lens materials are prone to drying when exposed to air, which contributes to the buildup of deposits on contact lenses, according to a study – "The Impact of Intermittent Air Exposure on Lipid Deposition", ...
Ophthalmology Nov 05, 2012 | not rated yet | 0
Decorative tinted contact lenses will be popular accessories this Halloween, but a Loyola University Medical Center optometrist is warning that improper use could cause severe eye damage.
Ophthalmology Oct 23, 2012 | not rated yet | 0
(Medical Xpress)—A UC Davis Health System Eye Center study found that scleral lenses, which rest beyond the limits of the cornea and cover the white part of the eye (sclera), were a good alternative for patients with corneal ...
Ophthalmology Oct 09, 2012 | not rated yet | 0 |
(Medical Xpress) -- Susan Loughman is among the tens of millions of Americans who suffer dry eyes. She has an especially bad condition, which makes it feel like there's sandpaper in her eyes.
Ophthalmology Mar 22, 2012 | not rated yet | 0
How we perceive the world tells us a lot about how the brain processes sensory information.
Neuroscience Feb 17, 2012 | 5 / 5 (1) | 0
A study about how wearing contact lenses affects glaucoma measurements has been named the top presentation at Loyola University Chicago Stritch School of Medicine's annual St. Albert's Day research symposium.
Diseases, Conditions, Syndromes Jan 13, 2012 | 4 / 5 (1) | 0 |
(Medical Xpress) -- An Auburn University team of chemical and biomedical engineers led by Mark Byrne, the Daniel F. and Josephine Breeden Associate Professor in the Samuel Ginn College of Engineering, has developed a new ...
Medical research Nov 09, 2011 | not rated yet | 0
(Medical Xpress) -- Some people think its cool to give themselves cat eyes, wolf eyes or really bloodshot eyes for Halloween. Thats possible with decorative contact lenses, ...
Health Oct 25, 2011 | not rated yet | 0
Hindsight, unlike many people's vision, is always 20/20. Laser eye surgery has become so common, it's easy to forget that just three decades ago a promising new treatment was greeted with skepticism and even fear.
Diseases, Conditions, Syndromes Jun 01, 2011 | not rated yet | 0
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.
For more information about Contact lens, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.