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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