Several variables affect post-occlusion surge
February 1st 2008Post-occlusion surge varies from phacoemulsification system to system based on several different parameters, including decreasing flow, increasing bottle height, decreasing tip gauge, and flow restriction. Randall J. Olson, MD, details recent research.
Hyperopic LASIK yields favorable long-term outcomes to obtain emmetropia
February 1st 2008Prospectively collected data from 45 eyes that underwent hyperopic LASIK using a proprietary excimer laser were analyzed. After a mean follow-up of 5.3 years, about three-fourths of the eyes had a spherical equivalent within 1.0 D of the emmetropic target.
ICLs correct high myopia better than all-laser LASIK
February 1st 2008Implantable contact lenses appear to correct high myopia more accurately than customized all-laser LASIK, and the phakic lenses also provide a better quality of vision, according to results of a retrospective study of 79 consecutive eyes undergoing vision correction for high myopia.
High expectations in pseudophakia fuel hyperrefraction
February 1st 2008Recipients of a premium IOL have high expectations for excellent uncorrected distance visual acuity. The availability of these implants has created a new patient base for laser vision correction. Considerations for performing laser enhancement are discussed.
Randomized study compares two OVDs
February 1st 2008Aspects of the intraoperative performance of two ophthalmic viscosurgical devices (OVDs) were prospectively evaluated during a single-surgeon, randomized study. Both agents worked well, but the results showed clear differences favoring a cohesive OVD of 1.6% sodium hyaluronate (Amvisc Plus, Bausch & Lomb) over a viscous-dispersive OVD of 4% chondroitin sulfate and 1.65% sodium hyaluronate (DisCoVisc, Alcon Laboratories).
Micro-coaxial phaco, torsional ultrasound a perfect marriage, doctor says
February 1st 2008The combination of torsional ultrasound and micro-coaxial phacoemulsification is ideal for cataract surgery because of the improved efficiency of the ultrasound system and the astigmatically neutral, highly competent 2.2-mm incision through which the highest-quality IOL can be implanted.
Several variables affect post-occlusion surge
February 1st 2008Post-occlusion surge varies from phacoemulsification system to system based on several different parameters, including decreasing flow, increasing bottle height, decreasing tip gauge, and flow restriction. Randall J. Olson, MD, details recent research.
Intracameral medication use requires careful consideration of pros, cons
February 1st 2008Although intracameral medication use in cataract surgery has several potential advantages, they should be weighed against the possible disadvantages and the benefits and risks of topical medication alternatives.
In vivo imaging characterizes differences in OVD retention
February 1st 2008In vivo confocal microscopy was used to measure the thickness of ophthalmic viscosurgical devices (OVDs) retained beneath the corneal endothelium after phacoemulsification surgery. Results are reported for six different OVDs used in surgeries performed with varying fluidics settings.
Alternate delivery routes offer strategies for reducing reliance on topical drugs
February 1st 2008Use of topical drops after cataract surgery may be associated with a number of drawbacks. Alternative strategies for intraoperative drug delivery can be highly effective and more economical, as well as offer better safety, convenience, and efficacy.