packed

Blind cricket is played with a white plastic ball packed with ball bearings that rattle as it rolls -- which allows it to be heard by players.

A simple analogy is people packed into a crowded elevator: the moment the door opens, they hurry to escape.

It affects the macula, the central region of the retina that contains tightly packed cells used for sharp, detailed color vision.

The white plastic ball, the size of a tennis ball, is packed with ball bearings that rattle as it rolls.

All of which makes the decision to play in the round, packed like sardines in a crushed tin can, all the more significant.