Featured Research

from universities, journals, and other organizations

Specialty contact lenses may one day help halt the progression of nearsightedness in children

Date:
October 2, 2012
Source:
Optical Society of America
Summary:
Recent experimental work supports the development of a potential cure for nearsightedness, or myopia, by using specialty contact lenses that coax the eye to grow in a way that can correct nearsighted vision while reducing myopia progression.

This is a diagram of myopia in the human eye.
Credit: National Eye Institute

Nearsightedness, or myopia, affects more than 40 percent of people in the U.S. and up to 90 percent of children in some parts of Asia. The problem begins in childhood and often progresses with age. Standard prescription lenses can correct the defocus but do not cure nearsightedness, and do not slow progression rates as children grow. But recent experimental work by biomedical scientist David Troilo and colleagues at the State University of New York (SUNY) College of Optometry in New York City supports the development of a potential cure for myopia by using specialty contact lenses that coax the eye to grow in a way that can correct nearsighted vision while reducing myopia progression.

Related Articles


Troilo will describe his findings at the Optical Society's (OSA) Annual Meeting, Frontiers in Optics (FiO) 2012, taking place Oct. 14 in Rochester, N.Y.

Myopia develops when the eye is too long, making it difficult to focus light from distant objects on the retina. Glasses or contact lenses that correct the defocus on the main visual axis can create a slight degree of farsightedness in the peripheral retina, Troilo says. The peripheral farsightedness may worsen myopia because as children grow, the eye grows to move the retina to where the light is focused, naturally lengthening the eye even further.

Troilo has shown that specially designed contact lenses that alter how light is focused in the peripheral retina can induce changes in growth that help reshape the eye in the desired way. The experimental lenses use different focal powers within a single lens: either alternating focal powers across the lens, or confined to the outer edge. Experiments with the new lenses found that they changed eye growth and refractive state, or focus, in a predictable way. The lenses successfully reduced the elongation of the eye that causes myopia progression.

Several contact lens designs may soon be available to help eye doctors manage the progression of myopia in children, Troilo says. Presentation FW1C.1 "Optical Approaches for Controlling Myopia Progression: Evidence from Experimental Models" takes place Wednesday, Oct. 17 at 8 a.m. EDT at the Rochester Riverside Convention Center.


Story Source:

The above story is based on materials provided by Optical Society of America. Note: Materials may be edited for content and length.


Cite This Page:

Optical Society of America. "Specialty contact lenses may one day help halt the progression of nearsightedness in children." ScienceDaily. ScienceDaily, 2 October 2012. <www.sciencedaily.com/releases/2012/10/121002150033.htm>.
Optical Society of America. (2012, October 2). Specialty contact lenses may one day help halt the progression of nearsightedness in children. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2012/10/121002150033.htm
Optical Society of America. "Specialty contact lenses may one day help halt the progression of nearsightedness in children." ScienceDaily. www.sciencedaily.com/releases/2012/10/121002150033.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Humanoid Robot Can Recognise and Interact With People

Humanoid Robot Can Recognise and Interact With People

Reuters - Innovations Video Online (Apr. 20, 2015) An ultra-realistic humanoid robot called &apos;Han&apos; recognises and interprets people&apos;s facial expressions and can even hold simple conversations. Developers Hanson Robotics hope androids like Han could have uses in hospitality and health care industries where face-to-face communication is vital. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Labour Party Warns Britain's Health Service 'on Life Support'

Labour Party Warns Britain's Health Service 'on Life Support'

AFP (Apr. 20, 2015) Britain&apos;s opposition Labour Party Monday claimed the National Health Service (NHS) was &apos;on life support&apos; as it turned its attention to the state-run service, which is a key issue for the UK&apos;s May 7 general election. Video provided by AFP
Powered by NewsLook.com
Sierra Leone Students Back to School After Long Ebola Closure

Sierra Leone Students Back to School After Long Ebola Closure

Reuters - News Video Online (Apr. 20, 2015) After an eight-month break, children in Sierra Leone return to school for the first time since the beginning of the Ebola outbreak. Nathan Frandino reports. Video provided by Reuters
Powered by NewsLook.com
Teen E-Cigarette Use Triples, Government Debates Regulations

Teen E-Cigarette Use Triples, Government Debates Regulations

Newsy (Apr. 19, 2015) The Centers for Disease Control and Prevention says in 2014, 13.4 percent of high school students reported smoking an e-cigarette within 30 days. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins