Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

’Weekend’ use matches daily drops for ’lazy eye’

02.11.2004


Adults who dispense eye drops daily to correct a child’s "lazy eye" take note: a new study from researchers at the Johns Hopkins Children’s Center and 29 other centers across North America finds that giving the drops just twice during the weekend is just as effective as administering them every day of the week.



In what is believed to be the first clinical trial comparing treatment regimens of atropine sulfate eye drops for the treatment of amblyopia, the investigators concluded that "there is no obvious advantage to the daily administration of atropine eye drops in either the speed of improvement or in the magnitude of improvement after four months of treatment," according to Michael Repka, M.D., the lead author of the study and a pediatric ophthalmologist at the Children’s Center. These findings are published by the Pediatric Eye Disease Investigator Group (PEDIG) in the November issue of Ophthalmology.

In the study, 168 children up to 7 years old with moderate amblyopia were randomly assigned to getting atropine eye drops either daily or on Saturday and Sunday only. After four months of treatment, children following both regimens were able to read an average of 2.3 lines higher on a standard eye chart. Additionally, 47 percent of children receiving daily drops and 53 percent getting weekend drops had vision in the amblyopic eye improve to normal levels by the four-month mark. This considerable degree of improvement is similar to that accomplished with daily eye patching, the mainstay of amblyopia treatment, the researchers note.


"The daily burden of administering drops usually falls on the parent, and if weekend eye drops are a good option, the regimen not only relieves some of this burden but may also encourage compliance with the treatment," Repka adds. "Compliance is very important, since timely and successful treatment for amblyopia in childhood can prevent lifelong visual impairment."

The most common cause of vision loss in children and young adults, amblyopia affects as many as 3 percent of children in the United States and usually begins in infancy or childhood. The condition is marked by poor vision in an otherwise healthy eye and occurs because the brain has learned to favor the other eye. Although the eye with amblyopia often looks normal, abnormal visual processing limits the development of a portion of the brain responsible for sight. The most common causes are crossed or wandering eyes, or significant differences in refractive error, such as farsightedness or nearsightedness, between the two eyes.

Atropine eye drops are designed to temporarily blur vision in the unaffected eye, thereby forcing the amblyopic eye to do most of the work. This helps strengthen the amblyopic eye and improves vision.

This research was conducted by the PEDIG at 30 clinical sites throughout North America and was funded by the National Eye Institute. The PEDIG focuses on studies of childhood eye disorders that can be implemented by both university-based and community-based practitioners as part of their routine practice.

Jessica Collins | EurekAlert!
Further information:
http://www.jhmi.edu

More articles from Studies and Analyses:

nachricht Study relating to materials testing Detecting damages in non-magnetic steel through magnetism
23.07.2018 | Technische Universität Kaiserslautern

nachricht Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Staying in Shape

16.08.2018 | Life Sciences

Diving robots find Antarctic seas exhale surprising amounts of carbon dioxide in winter

16.08.2018 | Earth Sciences

Protein droplets keep neurons at the ready and immune system in balance

16.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>