ABCD logo

Alaska Blind Child Discovery

A cooperative, charitable research project to vision screen every preschool Alaskan
 

PEDIG ATS-10 Bangerter

 
Home
 

A randomized trial comparing Bangerter filters and patching for the treatment of moderate amblyopia in children OBJECTIVE: To determine whether visual acuity improvement with Bangerter filters is similar to improvement with patching as initial therapy for children with moderate amblyopia. DESIGN: Randomized, clinical trial. PARTICIPANTS: We enrolled 186 children, 3 to <10 years old, with moderate amblyopia (20/40-20/80). METHODS: Children were randomly assigned to receive either daily patching or to use a Bangerter filter on the spectacle lens in front of the fellow eye. Study visits were scheduled at 6, 12, 18, and 24 weeks. MAIN OUTCOME MEASURES: Visual acuity in amblyopic eyes at 24 weeks. RESULTS: At 24 weeks, amblyopic eye improvement averaged 1.9 lines in the Bangerter group and 2.3 lines in the patching group (difference in mean visual acuities between groups adjusted for baseline acuity = 0.38 line). The upper limit of a 1-sided 95% confidence interval was 0.76 line, which slightly exceeded a prespecified noninferiority limit of <0.75 line. Similar percentages of subjects in each group improved > or =3 lines (Bangerter group 38% vs patching group 35%; P = 0.61) or had > or =20/25 amblyopic eye acuity (36% vs 31%, respectively; P = 0.86). There was a lower treatment burden in the Bangerter group as measured with the Amblyopia Treatment Index. With Bangerter filters, neither a fixation switch to the amblyopic eye nor induced blurring in the fellow eye to worse than that of the amblyopic eye was required for visual acuity improvement. CONCLUSIONS: Because the average difference in visual acuity improvement between Bangerter filters and patching was less than half a line, and there was lower burden of treatment on the child and family, Bangerter filter treatment is a reasonable option to consider for initial treatment of moderate amblyopia.

PEDIG, Rutstein, Robert P, Quinn, Graham E, Lazar, Elizabeth L, Beck, Roy W, Bonsall, Dean J, Cotter, Susan A, Crouch, Eric R, Holmes, Jonathan M, Hoover, Darren L, Leske, David A, Lorenzana, Ingryd J, Repka, Michael X, Suh, Donny W A randomized trial comparing Bangerter filters and patching for the treatment of moderate amblyopia in children. Ophthalmology;117:998-1004. | http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=20163869
 
ABCD History
   
Kids Eye Disorders
   
Amblyopia
   
Vision Screening
   
Issues
   
ABCD Clinics
   
References
   
Contact ABCD
   
 
   
 
    bangerter    
 
ATS Studies      
 
           
 
           
 
           
 
           
 
           
 
           
 
           
 
           

 

abcd-textnav
Home | ABCD History | Pediatric Eye Diseases | Amblyopia | Vision Screening | Issues | ABCD Clinics | Reference | Contact ABCD