Appendix.

Questions and Response Options on the Questionnaire

Item #	Category	Question	Response Options
			1	2	3	4	5	6	7
1	Opinion	I believe that maintaining eye contact is important for social communication	Definitely true	Mostly true	Somewhat true	Somewhat false	Mostly false	Definitely false	-
2	Opinion	I look people in the eye and maintain eye contact when speaking with them	Definitely true	Mostly true	Somewhat true	Somewhat false	Mostly false	Definitely false	-
3	Opinion	My eyesight has no impact on my ability to communicate with others	Definitely true	Mostly true	Somewhat true	Somewhat false	Mostly false	Definitely false	-
4	Social interaction difficulties	Because of your eyesight, how much difficulty do you have in knowing whether a person is looking at you during social interactions (e.g., conversations)	No difficulty	A little difficulty	Some difficulty	Moderate difficulty	Extreme difficulty	Stopped doing this because of your eyesight	Stopped doing this for other reasons or not interested in doing this
5	Social interaction difficulties	Because of your eyesight, how much difficulty do you have in knowing whether a person is looking at somebody else during social interactions (e.g., conversations)	No difficulty	A little difficulty	Some difficulty	Moderate difficulty	Extreme difficulty	Stopped doing this because of your eyesight	Stopped doing this for other reasons or not interested in doing this
6	Social interaction difficulties	Because of your eyesight, how much difficulty do you have seeing how people react to things you say?	No difficulty	A little difficulty	Some difficulty	Moderate difficulty	Extreme difficulty	Stopped doing this because of your eyesight	Stopped doing this for other reasons or not interested in doing this