Can a contact roll behind the eye?
Just as there is a dead end when you pull the lower lid down (this is known as the lower cul-de-sac), there is one under the upper lid (the upper cul-de-sac), and the contact cannot go any farther than that.
Can a contact roll behind the eye?
Just as there is a dead end when you pull the lower lid down (this is known as the lower cul-de-sac), there is one under the upper lid (the upper cul-de-sac), and the contact cannot go any farther than that.