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Authors
Convergence Insufficiency Treatment Trial Investigator Group

A Randomized Clinical Trial of Treatments for Symptomatic Convergence Insufficiency in Children

publication date
2009 Nov 18.
Category
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Abstract/Introduction

Objective

To compare home-based pencil push-ups (HBPP), home-based computer vergence/accommodative therapy and pencil push-ups (HBCVAT+), office-based vergence/accommodative therapy with home reinforcement (OBVAT), and office-based placebo therapy with home reinforcement (OBPT) as treatments for symptomatic convergence insufficiency (CI).

 

Methods

In a randomized clinical trial, 221 children 9 to 17 years with symptomatic CI were assigned to one of four treatments.

 

Main Outcome Measures

Convergence Insufficiency Symptom Survey (CISS) score after 12 weeks of treatment. Secondary outcomes were near point of convergence (NPC) and positive fusional vergence at near (PFV)


Conclusion/Results

Results

After 12 weeks of treatment the OBVAT group’s CISS score (15.1) was statistically significantly lower than the HBCVAT+, HBPP, and OBPT groups’ scores of 21.3, 24.7, and 21.9, respectively (P < 0.001). The OBVAT group also demonstrated a significantly improved NPC and PFV compared with the other groups (P <= 0.005). A successful or improved outcome for the OBVAT, HBPP, HBCVAT+, and OBPT groups was found in 73%, 43%, 33%, and 35%, respectively.

 

Conclusion

Twelve weeks of OBVAT results in a significantly greater improvement in symptoms and clinical measures of NPC and PFV and a greater percentage of patients reaching pre-determined criteria of success when compared with HBPP, HBCVAT+, or OBPT.


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Such a nice optician. My grandson is only 4 and needs glasses. We were so sad, but he explained the issues, and we will follow up as he suggested.


Anna P.

I had such a good experience with the clinic. Very friendly staff and doctor, did not have to wait for long to be called, and was treated respectfully. Thanks, American Family.


June S.

Dr. Zurcher has gone above and beyond what any other eye doctor has ever done to figure out what is going on with my eyes. Very happy with American Family Vision.


Christine R.

Family Vision Clinic changed our lives! My daughter was frequently car sick, and she was getting headaches every day, often painful enough that they brought her to tears. We saw a string of doctors and therapists, but we made no progress. Finally, we found Dr. Levi Zurcher and his eye therapist Rain. After ten weeks of eye therapy my daughter no longer gets headaches, and she no longer gets car sick. Daily tears are a thing of the past. I really can’t say enough about this clinic. It was fascinating to watch Dr. Zurcher work. For the first time, someone who knew what they were doing was intently studying my daughter, really trying to figure out all of her eye issues, and his therapist Rain is one of the most patient and lovely people that I’ve ever had the good fortune to meet. We’re finished with eye therapy—yay!—and I have switched to American Family Vision Clinic for all of my family’s other eye health needs.


Lars Wulff

Very professional, yet kind and helpful. They do what they can to make the appointment comfortable. I was running a bit late, I made sure ti call. They were able to switch me with a patient who was already there, they treated me with respect, and helped my son have confidence by getting him the eye care he needed that day. Thank you so much! Would recommend to anyone. It's a blessing that they care enough to work with people who have all different types of insurance from work to state coverage.


Justin E.

The staff is friendly. The Doc is very knowledgeable. The office is family friendly and everyone is so patient with the little ones.


Amy Fagerness
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