Table 6 .

Item-level differences on the Convergence Insufficiency Symptom Survey between participants with convergence insufficiency with and without a coexisting decreased accommodative facility at study entry

Convergence Insufficiency Symptom Survey	Decreased Accommodative Facility?
	No	Yes
Item	Mean (SD)	Mean (SD)	Corrected p Value*	Cohen’s d
1. Do your eyes feel tired?	2.1 (0.9)	2.3 (1)	.049	.28
2. Do your eyes feel uncomfortable?	1.7 (1)	1.9 (1.1)	.99	.17
3. Do you have headache?	1.8 (1.2)	2 (1.2)	.99	.15
4. Do you feel sleepy?	2.1 (1.1)	2.3 (1.1)	.99	.15
5. Do you lose concentration?	2.4 (1)	2.5 (1)	.99	.09
6. Do you have trouble remembering what you have read?	2.1 (1.2)	2.2 (1.1)	.99	.1
7. Do you have double vision?	1.9 (1.2)	2 (1.2)	.99	.14
8. Do you see the words move, jump, swim or appear to float on the page?	1.3 (1.3)	1.5 (1.3)	.99	.12
9. Do you feel like you read slowly?	2.1 (1.3)	2.2 (1.3)	.99	.08
10. Do your eyes ever hurt?	1.7 (1.1)	2 (1.1)	.09	.26
11. Do your eyes ever feel sore?	1.3 (1.1)	1.5 (1.2)	.99	.14
12. Do you feel a ”pulling” feeling around your eyes?	1.1 (1.1)	1.1 (1.1)	.99	.06
13. Do you notice the words blurring or coming in and out of focus?	2.1 (1)	2.3 (1)	.99	.16
14. Do you lose your place?	2.5 (1)	2.5 (0.9)	.99	.03
15. Do you have to re-read the same line of words?	2.5 (1)	2.5 (0.9)	.99	.06

^*The p values for item analyses have been corrected using the Holm–Bonferroni stepdown method.