THE IMPORTANCE OF MAINTAINING A LOWER, MORE PHYSIOLOGICAL IOP DURING CATARACT SURGERY.
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THE IMPORTANCE OF MAINTAINING A LOWER, MORE PHYSIOLOGICAL IOP DURING CATARACT SURGERY.
- Author:
ANDREA PETZNICK, GARY SORENSEN
High levels of irrigation pressure have historically been necessary because of technology limitations with phacoemulsification systems. These high pressures were required to maintain adequate chamber stability at efficient parameters of aspiration flow and vacuum. Higher levels of IOP during cataract surgery may have undesirable clinical ramifications, such as greater post-operative anterior segment inflammation, more corneal edema and disruption of the anterior vitreous face. Higher IOP settings during phacoemulsification reduce the retinal blood flow, cause subclinical changes in the retina and may pose a risk of causing transient ocular ischemia.
