UNIGE document Scientific Article
previous document  unige:92786  next document
add to browser collection

Positive Vitreous Pressure: Pathophysiology, Complications, Prevention and Management

Published in Survey of ophthalmology. 2017, vol. 62, no. 2, p. 127-133
Abstract Positive vitreous pressure (PVP) occurs during anterior segment intraocular surgery associated with acute hypotony and is characterized by forward displacement of the lens-iris diaphragm with shallowing of the anterior chamber resistant to reformation, repeated iris prolapse, and, in severe cases, zonular rupture and vitreous or lens prolapse that can lead to a cascade of intraoperative complications. PVP is particularly common during penetrating keratoplasty (PK), conventional nuclear expression cataract extraction, and repair of anterior open globe injury. Hypotony resulting from aqueous loss leads to elevated vitreous pressure from three possible causes: external scleral compression, acute intraocular intumescence, or rarely acutely increased vitreous volume. Understanding the pathophysiology of PVP helps in its prevention and management.
PMID: 27751822
Full text
Article (Published version) (377 Kb) - document accessible for UNIGE members only Limited access to UNIGE
Research group Ophtalmologie expérimentale (925)
(ISO format)
CHRONOPOULOS, Argyrios, THUMANN, Gabriele, SCHUTZ, James Scott. Positive Vitreous Pressure: Pathophysiology, Complications, Prevention and Management. In: Survey of ophthalmology, 2017, vol. 62, n° 2, p. 127-133. doi: 10.1016/j.survophthal.2016.10.002 https://archive-ouverte.unige.ch/unige:92786

458 hits

1 download


Deposited on : 2017-03-22

Export document
Format :
Citation style :