Final answer:
Typically, one eye pad is used for applying a pressure patch to provide firm pressure to the eye for healing after an injury or surgery.
Step-by-step explanation:
When applying a pressure patch to the eye, typically one eye pad is used. The purpose of a pressure patch is to provide firm pressure to the eye, which helps in the healing process, especially after an injury or surgery. For a pressure patch to be effective, it should be applied correctly; this usually involves placing a single pad over the affected eye and securing it with adhesive tape in a way that applies gentle but firm pressure on the eye.When applying a pressure patch, you typically use one eye pad on the affected eye and two eye pads on the healthy eye.
This is done to provide support and protection to the affected eye while still allowing the person to see with their healthy eye.