Can blunt ocular injury also cause an open globe injury?
Some studies classify globe trauma as blunt vs penetrating
Other studies classify globe trauma as closed vs open
Are these two classifications the same or not?
Blunt ocular injury" does NOT automatically mean that this is a "closed globe injuryBlunt ocular injury , since blunt injury can cause subconjunctival laceration of sclera, whch means penetrating injury
Blunt injury can cause rupture (Inside to out side) which can present as open globe injury. Both classification systems are based on different criteria.
https://www.google.co.in/search?q=bets+ocular+trauma+classification&espv=2&biw=1366&bih=643&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMIpYqpnMb5xwIViRaUCh0kEwUY#imgrc=TQvQRyz6b0vf_M%3A
Just found this:Terminology of Mechanical Injuries:the Birmingham Eye Trauma Terminology (BETT). This answered my question. Thank you again
A blunt injury occurs when the insult is caused by a blunt [non-sharp] object such as a squash ball whereas a penetrating injury is caused by a sharp object such as a knife or a fast-moving projectile which physically breaches the corneo-scleral envelope and enters the globe. This is to be contrasted with the blunt injury in which the offending object will compress the globe, increasing the pressure within the globe and causing the globe to rupture
That is correct and adding to this, according to the Birmingham Eye Trauma Terminology, a penetrating injury has a point of entry the same as the point of exit. If the entry and exit points are different then it is termed as a perforating injury. If there is an entry point but no point of exit, then it is termed as an intraocular foreign body (IOFB)
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