How are Piggy, his glasses, and the conch symbolically linked in the novel?

From lord of the flies

In the novel Lord of the flies

The conch symbolises organization of power and order in civilation

Piggy symbolises their past life and order as well as hope

Piggy's glasses symbolise necessities such as fire and when they are broken as well as the conch they both symbolise the fall of civilation and the beginning of chaos