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Table 4 Comparison of accommodative and binocular findings between symptomatic and asymptomatic subjects with convergence insufficiency

From: Effect of corneal refractive surgery on accommodative and binocular dysfunctions among civilian pilots in Southwest China

Parameters Symptomatic CI
(n = 11)
Mean ± SD
Asymptomatic CI
(n = 15)
Mean ± SD
P value
AA (D) 5.9 ± 2.1 7.8 ± 1.4 0.005a
MAF (right eye only, cpm) 5 ± 6 9 ± 5 <0.001a
BAF (cpm) 3 ± 3 6 ± 5 <0.001a
MEM (right eye only, D) + 0.15 ± 0.42 + 0.11 ± 0.24 0.069
PRA (D) −2.11 ± 0.23 −2.05 ± 0.57 0.174
NRA (D) + 1.41 ± 0.33 + 1.21 ± 0.42 0.084
Phoria (Δ)
 Near −13.1 ± 4.2 −11.7 ± 3.8 0.056
 Distance −2.1 ± 0.7 − 2.8 ± 1.6 0.125
PFV (Near break point) (Δ) 10.1 ± 7.4 8.8 ± 6.9 0.055
NFV (Near break point) (Δ) 11.3 ± 4.4 11.0 ± 3.1 0.154
  1. AA Accommodative amplitude, BAF Binocular accommodative facility, MAF Monocular accommodative facility, MEM Monocular estimated method, NPC Near point of convergence, PFV Positive fusional vergence, NFV Negative fusional vergence, PRA Positive relative accommodation, NRA Negative relative accommodation, a Statistically significant
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