1. The two kinds of cells in the eyes are  25 cmageblind spotconesEyelidsmovingretinarods and  25 cmageblind spotconesEyelidsmovingretinarods
2.  25 cmageblind spotconesEyelidsmovingretinarods are sensitive to bright light.
3.  25 cmageblind spotconesEyelidsmovingretinarods are sensltlve to dlm light.
4.  25 cmageblind spotconesEyelidsmovingretinarods sense colour.
5. At the junction of the optic nerve and the retina, there are no sensory cells, so no vision is possible at that spot. This is called  25 cmageblind spotconesEyelidsmovingretinarods
6. The impression of an image does not vanish immediately from the  25 cmageblind spotconesEyelidsmovingretinarods
7. If still Images of a moving object are flashed on the eye at a rate faster than 16 per second, then the eye perceives this object as  25 cmageblind spotconesEyelidsmovingretinarods
8. The minimum distance at which the eye can see objects dlstinctly varies with  25 cmageblind spotconesEyelidsmovingretinarods
9. The most comfortable distance at which one can read with a normal eye is about  25 cmageblind spotconesEyelidsmovingretinarods
10.  25 cmageblind spotconesEyelidsmovingretinarods shut out light when not required.