Out of the box.... Unlikely!! Tips and tricks for a greater chance of success using eye gaze.
Often when families and professionals start to consider eye gaze for an individual in their care they are looking for an out of the box solution. They are unaware that there are a vast array of device settings and preparation strategies for both the individual using the device and the environment. Unfortunately, these preparation strategies are often overlooked thus negatively impacting the client's potential to successfully utilize the device.
This blog post will discuss some common tips and tricks that can be utilized to increase the user's potential for a successful outcome.
1) Watch the light - Some client's are light sensitive leading to fatigue. Light can also cause glare leading to decreased accuracy of the device and increased difficulty with calibrating the device.
2) Consider how to position the device and client. Positioning the device lower will reduce client fatigue and increase accuracy. The device should never be positioned higher than the client's eye level. Preferably the user should be looking down to use the device.
3) Make sure that the client's eyes can work together. It may be necessary to utilize an eyepatch or calibrate using one eye.
4) Make sure that the client doesn't have dry eye. Utilize drops because dry eye can reduce accuracy and increase calibration difficulty.
5) Decrease or increase the dwell time. Lessor dwell time before items are selected will increase accuracy but will increase the training time for the user. just-right-ratio of dwell time for selection needs to be obtained.
6) Decrease or increase the amount of targets required during calibration. Lesser targets reduce accuracy but reduces client fatigue improving chances for a successful calibration. This is yet another ratio that needs to be explored.
7) Also decrease the amount or increase the size of the targets on the screen as necessary when the user starts using the device.
Hopefully, if you follow these helpful steps it will increase the user's likelihood for success.
For more information on eye-gaze systems and information on systems that have the most forgiving calibration requirements please visit LC Technologies at http://www.eyegaze.com