Discussion on how to find your Dominant Eye:  (Taken From Dominant Eye)
 Discover Your Dominant Eye
1. Select an object that is a few feet away from you.
2. Stare at the object and then point to the object using your index finger.
3. When your eyes are focused on the object and not on your finger, you will see two blurry fingers in your line of sight.
4. Now, close one eye and then close the other eye.
You will notice that with one of your eyes closed, your index finger will point exactly at the object, however, when the other eye is closed, your finger will point at an area slightly shifted to the side of the object. The eye withwhich you see your index finger pointing exactly at the object is your "Dominant Eye."






Finding your blind spot:  from the Website Finding your blind spot.

Place a small "x" on the right-hand side of a piece of plain typing paper.  This will serve as a fixation mark.  Place a small filled circle on the left-hand side, about 5 inches from the "x".  Close yourright eye, and use your left eye to stare directly at the fixation cross, holding it such that the spot to the left of fixation is at the same level as the fixation cross.  Move the paper slowly toward and away from your left eye, all the while holding your gaze steady on the fixation cross.  At some distance (about 18") you will witness that the right-hand spot disappears.  It has fallen into your blind spot.  How large is your blind spot? Hold your paper in the position where the right-hand spot has disappeared, and use a small probe, like a pencil point, to map the extent of your blind spot. Do this by initially situating the probe well within the blind spot, and then move it in a variety of directions (left, right, up, down, etc.) until the probe just becomes visible again: mark that spot.






Have you ever noticed that it is easy to see a star in the sky by NOT looking directly at it? It is actually easier to see a dim star at night by looking a bit off to the side of it. Try it! This is because the two types of photoreceptors (rods and cones) in the retina perform different functions and are located in the retina in different locations. The cones, which are best for detail and color vision, are in highest concentration in the center of the retina. The rods, which work better in dim light, are in highest concentration in the sides of the retina. So if you look "off-center" at the star, its image will fall on an area of the retina that has more rods! To learn more go Eric H. Chudler's home page below.

Links:
Univserity of Scranton Kid's Judge Page
Click here to enter Eric H. Chudler's Link of Visual Illusions
Also link to Eric H. Chudler's Vision Page to do more experiments invovling the eye at home. Vision Page