| Acuity-Distance |
Visual acuity (sharpness, clearness) at 20 feet distance. |
| Acuity-Near |
Visual acuity for short distance (specifically, reading distance). |
| Focusing Skills |
The ability of the eyes to maintain clear vision at varying distances. |
| Eye Tracking and Fixation Skills |
The ability of the eyes to look at and accurately follow an object; this includes the ability to move the eyes across a sheet of paper while reading, etc. |
| Binocular fusion |
The ability to use both eyes together at the same time. |
| Stereopis |
Binocular depth perception. |
| Convergence and Eye Teaming Skills |
The ability of the eyes to aim, move and work as a coordinated team. |
| Hyperopia |
A refractive condition that makes it difficult to focus, especially at near viewing distances. |
| Color Vision |
The ability to differentiate colors. |
| Reversal Frequency |
Confusing letters or words (b, d; p, q: saw, was; etc.) |
| Visual Memory |
The ability to store and retrieve visual information. |
| Visual Form Discrimination |
The ability to determine if two shapes, colors, sizes, positions, or distances are the same or different. |
| Visual Motor Integration |
The ability to combine visual input with other sensory input (hand and body movements, balance, hearing, etc.); the ability to transform images from a vertical to a horizontal plane (such as from the blackboard to the desk surface). |
