Objective To investigate the changes of blood-ocular barrier and effect of ligustrazine on the ocular endosmosis of intravenous ciprofloxacin in rabbit eyes of corneal perforating injury.
A specialized perforating gun is then lowered and fired, creating a series of small, inch-long holes that burst through the well's casing into the rock layer.
The back of it has a hang tab that's perforated, which is different from the subsequent models that came out and collectors find the hang tab very collectible.