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. Author manuscript; available in PMC: 2010 Sep 1.
Published in final edited form as: Optom Vis Sci. 2009 Sep;86(9):1096–1103. doi: 10.1097/OPX.0b013e3181b6210f

Table 2.

Mean adjusted change* and 95% confidence interval in each outcome measure at 6- and 12-months, by treatment group for asymptomatic CITT patients post-treatment who did not receive alternative treatment prior to the follow-up visit.

Outcome/Visit OBVAT HBPP HBCVAT+ OBPT
Convergence Insufficiency Symptom Survey

6 Month 0.2
(−1.6, +2.1)
−5.8
(−12.4, +0.8)
0.2
(−3.4, +3.8)
−2.0
(−5.0, +1.1)

12 Month −0.6
(−3.1, +1.8)
−1.9
(−5.9, +2.0)
0.1
(−4.8, +4.9)
2.0
(−2.1, +6.1)

Near Point Convergence break (cm)

6 Month 1.0
(+0.2, +1.9)
−0.1
(−1.2, +1.1)
−0.9
(−2.4, +0.5)
0.4
(−0.9, +1.6)

12 Month 0.2
(−0.9, +1.3)
0.1
(−1.6, +1.8)
0.5
(−1.6, +2.6)
0.3
(−1.7, +2.3)

Positive Fusional Vergence (Δ)

6 Month 2.3
(−1.0, +5.5)
−3.5
(−8.0, +1.0)
−2.2
(−8.0, +3.5)
0.1
(−4.6, +4.9)

12 Month 3.0
(+0.04, +5.9)
−0.3
(−4.9, +4.3)
0.6
(−4.9, +6.2)
−1.3
(−6.1, +3.5)
*

Change adjusted for measurement obtained at the week 12 visit and calculated such that values greater than zero indicate improvement while values less than zero indicate a decline/deterioration.

OBVAT: Office-based vergence/accommodative therapy with home reinforcement

HBPP: Home-based pencil push-up therapy

HBCVAT+: Home-based computer vergence/accommodative therapy and pencil push-ups

OBPT: Office-based placebo therapy with home reinforcement