Navigation Links
No need for children with lazy eye to wear patches all day
Date:9/14/2007

Children with amblyopia (commonly known as lazy eye) need only wear an eye patch for three to four hours a day for 12 weeks to improve vision, say researchers in a study published on bmj.com today.

Patching for all waking hours for up to several years, which is often recommended, is almost certainly excessive, they argue.

Amblyopia results from a disturbance to the vision pathways between the eyes and the brain, which is often associated with blurred vision or crossed eyes (strabismus).

Studies have shown that occlusion therapy (patching) can improve vision, but results suggest that maximal doses (12 hours a day) are no more beneficial than substantial doses (six hours a day). Despite this, many doctors still prescribe large doses, above six hours a day.

So researchers at City University in London and McGill University in Montreal funded by Fight for Sight, London, set out to determine the amount of occlusion treatment required in children with amblyopia to achieve the best outcome.

The study involved 97 children aged 3-8 years with a confirmed diagnosis of amblyopia. All children had a full ophthalmic assessment and were instructed to wear glasses all the time for 18 weeks. On completion of this phase, 80 children who still met the studys definition of amblyopia were then told to wear a patch for either six or 12 hours a day.

Two electrodes were attached to the under surface of each patch to monitor the amount of occlusion each child actually received. Visual function was recorded every two weeks.

There was no significant difference in visual acuity between the two groups. However, the mean dose rates (hours a day with a patch) actually achieved were also not significantly different (4.2 in the six hour group and 6.2 in the 12 hour group).

Visual improvement was similar for those children who received 3-6 hours a day or 6-12 hours a day, but significantly worse for children who received less than three hours a day.

Children under 4 years of age required significantly less occlusion (under three hours a day) than older children to correct their vision.

This analysis suggests that achieving an initial dose rate of three to four hours a day should be a clinical priority, say the authors. The response depends on age, however, so for children under 4 years this could be reduced. Patching beyond 12 weeks did not confer additional benefit.

Eye patching can cause considerable distress for both the child and family, they add, so doctors should try to minimise the amounts necessary for the best expected outcome.


'/>"/>

Contact: Emma Dickinson
edickinson@bmj.com
44-020-738-36529
BMJ-British Medical Journal
Source:Eurekalert

Related medicine news :

1. Antibiotics Dangerous for Diarrhoea in Children Caused by E.Coli
2. Inhaled Steroids Safe & Effective for Children with Asthma
3. General Anesthesia Safe For Children On Ketogenic Diet Suffering From Epilepsy
4. Starvation in pregnant women can cause heart disease to their children
5. Fireworks can spell death for asthmatic children
6. Cut down TV and video games and you have less aggressive children.
7. Children suffer the most when parents divorce
8. Half of worlds children are passive smokers - damning disclosure from WHO
9. Antibiotic induces liver damage in children with E.COLI infections.
10. Analgesic abuse - cause for chronic headache in children
11. Cats to protect children from asthma
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... Ill. (PRWEB) , ... October ... ... Edwardsville School of Pharmacy (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer ... healthcare professionals on guideline updates for the primary prevention of cardiovascular diseases ...
(Date:10/13/2017)... ... , ... The Visiting Nurse Association (VNA) of Somerset Hills is proud to ... unique items from across the nation, this holiday-themed event will raise funds and awareness ... VNA. The boutique will be open Saturday, November 4 (10:00 a.m. – 5:00 ...
(Date:10/13/2017)... ... ... Talented host, actor Rob Lowe, is introducing a segment ... of "Success Files," which is an award-winning educational program broadcasted on PBS Member ... with passion and integrity. , Sciatica occurs when the sciatic nerve in the ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare Compliance (FHC), an ... showcase a range of technology and learning solutions at the 68th Annual American ... to be held October 14–18, 2017 at the Mandalay Bay Resort in Las ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( ... today the introduction of an innovative new design of the shoulder pad. The ... get maximum comfort while controlling your pain while using cold therapy. By utilizing ice ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... , Oct. 12, 2017 AVACEN Medical , ... company with their  2017 New Product Innovation Award for ... extensive primary and secondary medical device market research by Frost ... its first-to-market OTC, drug-free pain relief product, the AVACEN 100, ... to treating fibromyalgia widespread pain. ...
(Date:10/11/2017)... , Oct. 11, 2017  Caris Life Sciences ... on fulfilling the promise of precision medicine, today announced ... joined Caris, Precision Oncology Alliance™ (POA) as its 17 ... centers, the St. Jude Crosson Cancer Institute will help ... the use of tumor profiling, making cancer treatment more ...
(Date:10/10/2017)... , Oct. 10, 2017   West Pharmaceutical ... innovative solutions for injectable drug administration, today shared the ... ID Adapter for improving the intradermal administration of polio ... Skin Vaccination Summit in May 2017 by Dr. ... Polio Department, World Health Organization (WHO), and recently published ...
Breaking Medicine Technology: