By the way, sorry if what I have done here is annoying. I see you have many published papers of your own. I'm not trying to come on here and tell you meds how to do their job. Sorry!
[I am beginning vision therapy next week]
[thanks for your feedback John]
The first article I referred to is "Care of the Patient with Accommodative and Vergence Dysfunction" published by the American Optometric Society. It is a meta-study (a collection and summary of the results of several studies). A websearch will give you the link for the PDF.
As with John C above, this article is less explicit in claiming positive effects of vision therapy on accommodative insufficiency, stating things like "accommodation can be modified with training"; however, for accommodation infacility, convergence insufficiency, and convergence excess the article explicitly states positive benefits: "In 87% of patients with accommodative anomalies, asthenopia was eliminated" etc.
Another article is "Accommodation insufficiency in children: are exercises better than reading glasses?" (Strabismus. 2008 Apr-Jun;16(2):65-9) - a small study with only 24 participants. It reports that, over an 8 week period, children who used a +/-1.50 flipper to exercise there eyes reported greater improvements (though not "statistically significant") in accommodative amplitude to those who wore +1.00 lenses during the same period (both showed improvements over all).
-- The working-definition of "accommodative insufficiency" is included in the study.
-- I suspect the +/-1.50 flipper used in this study may be similar to the "pencil pushup" mentioned by John above.
There are many other journal articles, but given my eye issues I have not had a chance to read them yet. I am just a layman, there may be many elements of these studies which are over my head.
The most definitive and authoratative shoulds that only simple, inexpensive "pencil pushup:" are effect for convergence insufficiency. No clear benefit for accomodative insufficieincy has been shone. Note most all cases are due to significent latent hyperopia and presbyopia and are treated with glasses.
JCH MD
The American Optometric Society have a paper which affirms excercises/therapy as a way to reduce or remove accommodative issues, including accommodative insufficiency. Other journals support this too. What the excercises are I don't yet know.
- fellow sufferer (28y/o) doing own research. There is a lot of misinformation out there it seems. Be cautious.
No. none that have proven successful.
The most common causes are age and uncorrected hyperopia.
JCH MD