Table 1.

Summary of participants' responses to survey question 6 “When did your vision loss start.”

Age in years when vision loss began	Frequency	Percent
0	21	56.8
0.5	1	2.7
1.0	2	5.4
2.0	1	2.7
3.5	1	2.7
4.0	1	2.7
6.0	1	2.7
12.0	2	5.4
14.0	1	2.7
15.0	1	2.7
17.0	1	2.7
18.0	1	2.7
45.0	1	2.7
48.0	1	2.7
53.0	1	2.7
Total	37	100.0

For the majority of participant vision loss was present or started at birth (56.8%).