Document Detail

Mechanisms of intraocular pressure elevation after pars plana vitrectomy.
MedLine Citation:
PMID:  2780005     Owner:  NLM     Status:  MEDLINE    
A prospective study of 222 consecutive patients undergoing pars plana vitrectomy was done to determine the incidence and mechanisms of postoperative intraocular pressure (IOP) elevation. Within 48 hours of surgery, postoperative IOP increased by at least 5 to 22 mmHg in 136 eyes (61.3%) and to 30 mmHg or more in 79 eyes (35.6%). Presumed mechanisms of open-angle glaucoma included intraocular gas expansion (28.4%), inflammatory trabecular meshwork obstruction (4.5%), silicone oil-related glaucoma (3.6%), and erythroclastic glaucoma (2.2%). Closed-angle mechanisms included pupillary block glaucoma (6.8%) and ciliary body edema (3.6%). Factors which were associated with postvitrectomy pressure elevation included placement of a scleral buckle, either intraoperatively (P = 0.003) or before vitrectomy (P = 0.001), intraoperative scatter endophotocoagulation (P = 0.041), intra-operative lensectomy (P = 0.024), and development of postoperative fibrin membranes (P = 0.038). Surgery was required to lower IOP or relieve pupillary block in 25 eyes (11.3%).
D P Han; H Lewis; F H Lambrou; W F Mieler; A Hartz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Ophthalmology     Volume:  96     ISSN:  0161-6420     ISO Abbreviation:  Ophthalmology     Publication Date:  1989 Sep 
Date Detail:
Created Date:  1989-10-19     Completed Date:  1989-10-19     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7802443     Medline TA:  Ophthalmology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1357-62     Citation Subset:  IM    
Department of Ophthalmology, Medical College of Wisconsin, Milwaukee 53226.
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MeSH Terms
Aged, 80 and over
Child, Preschool
Data Interpretation, Statistical
Glaucoma / etiology,  surgery
Intraocular Pressure*
Middle Aged
Prospective Studies
Risk Factors
Vitrectomy / adverse effects*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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