The Neutralizer
Ocular dominance, also called eye dominance, is the tendency to prefer visual input from one eye to the other. It is somewhat analogous to the laterality of right or left handedness; however, the side of the dominant eye and the dominant hand do not always match. This is because both hemispheres control both eyes, but each one takes charge of a different half of the field of vision, and therefore a different half of both retinas. There is thus no direct analogy between "handedness" and "eye dominance" as lateral phenomena.
Approximately two-thirds of the population is right-eye dominant; however in a small portion of the population neither eye is dominant. Eye dominance does appear to change depending upon direction of gaze due to image size changes on the retinas. Eye dominance has been categorized as "weak" or "strong".
The dominant eye is the one that is primarily relied on for precise positional information. This may be especially important in sports which require aim, such as archery, darts or shooting sports and with administering eye drop medication to the eyes.
A person's dominant eye can be determined by extending both arms, bringing both hands together to create a small opening, then with both eyes open views a distant object through the opening. Next, alternates closing the eyes to determine which eye is still viewing the object, this is the dominant eye.
Some patients are not able to close their other eye when administering medication with using Eyot® products. Often users experience no problems when administering medication to the dominant eye. In the case that users are not able to close the dominant eye when administering medication to the non-dominant eye, than the dominant eye suppresses the image of the administering procedure of the non dominant eye, causing difficulties to receive the eye drop into the eye. In such case the Neutralizer will function, because then you aim with dominant eye to administer medication to the non dominant eye. It is not necessary to use the Neutralizer when administering the dominant eye. The Neutralizer fits to all Eyots® except the UD Eyots®.
The Neutralizer is also very functional when one eye has a poor sight.
It is plausible to assume that eye dominance has a relation with a person skills to administer medication to the eye. Next steps/suggestions will neutralize the effects of eye dominance as much as possible:
- Determine the dominant eye
- Use an Eyot® with Neutralizer
- Administer medication to both eye with your dominant hand
- Sit, if necessary straight under a light source