Oculomotor Balance
Each eye has six muscles to control movement and it is important both eyes work together.
These tests will check that both your eyes are co-ordinated and that you have comfortable vision at all distances.
You may be asked to view a letter on a distant chart or a near object while your eyes are covered and uncovered.
You may be asked whether a red line passes through a spotlight or whether it is above or below or to the side of the light.
You may be asked to folow a pen-torch light around in all directions of gaze.
If you have a minor eye co-ordination defect it can be corrected by incorporating prism lenses into your spectacles.