Distance from the Child
|
Size of the object |
2 feet |
4 feet |
6 feet |
8 feet |
20 feet |
|
1 inch |
20/200 |
20/100 |
20/67 |
20/50 |
20/20 |
|
1 inch |
20/400 |
20/200 |
20/133 |
20/100 |
20/40 |
|
1 inch |
20/600 |
20/300 |
20/200 |
20/150 |
20/60 |
|
1 inch |
20/800 |
20/400 |
20/267 |
20/200 |
20/80 |
Acknowledgments
Topor, I. (2004). Approximate functional visual acuity for different sizes of objects and distances. Chapel Hill, NC: Early Intervention Training Center for Infants and Toddlers With Visual Impairments, FPG Child Development Institute, UNC-CH.
Visual Conditions Module 06/06/04
S4 Handout H
EIVI-FPG Child Development Institute
UNC-CH