The Relationship Between Visual Function and Performance in Para Swimming

Sports Medicine - Open

Table 5 Correlation matrix of visual functions for all participants with and without missing values

Visual functions	1	2	3	4	5
Excluding missing values
1. Visual acuity
2. Contrast sensitivity	− .84***
3. Light sensitivity	− .03	− .44*
4. Depth perception	.44*	− .38	− .10
5. Visual search	.25	.04	.10	.02
6. Motion perception	− .38	.10	− .04	− .23	− .46*
Including missing values (using dummy values)
1. Visual acuity
2. Contrast sensitivity	− .79***
3. Light sensitivity	.59***	− .76***
4. Depth perception	.80***	− .80***	.55***
5. Visual search	.77***	− .62***	.49***	.64***
6. Motion perception	− .38**	.38**	− .26	− .51***	− .50**

The number of participants included in each correlation vary between n = 27 and n = 45
*p < 0.05; **p < 0.01; ***p < 0.001