Accommodating IOL's new design shows benefits
March 1st 2008Results of a multicenter FDA clinical trial of a fourth-generation version of an accommodating IOL (crystalens HD-100, eyeonics/Bausch & Lomb) demonstrate that the lens provides excellent uncorrected visual acuity at all distances that exceeds those of previous versions and without causing loss of contrast sensitivity.
Calculating corneal SA can influence IOL selection
March 1st 2008Calculating corneal spherical aberration-especially in eyes with extreme ranges of corneal spherical wavefront aberrations-by using the recorder function of a diagnostic system with analytical software may be beneficial when choosing an IOL that has positive, neutral, or negative SA to reduce postoperative SA in the whole eye.
Debate continues on role of incision type in endophthalmitis risk
March 1st 2008Cataract surgeons agree that proper incision construction is paramount for achieving good postoperative stability that will reduce the risk for endophthalmitis. The safety of the clear cornea incision technique versus use of other incision types remains controversial, however.
Glaucoma-understanding, treatments have evolved over time
February 15th 2008The origin of the term glaucoma is disputed. Its meaning through antiquity is also poorly understood. Today there are an increasing number of medications. But as yet we are still in the Dark Ages insofar as the cause of this visually disabling disorder.
ARVO 2008 program expected to draw more than 10,000 attendees with 39.5 hours of CME
February 15th 2008The ARVO meeting will feature more than a dozen minisymposia by the ARVO sections, education courses, workshops, special interest group sessions, and events aimed specifically at members-in-training.
Donor endothelial cell counts do not determine dislocation rates in EK
February 15th 2008Preoperative donor endothelial cell count does not affect the rate of dislocation in endothelial keratoplasty. The surgical technique is likely the most important factor that drives the dislocation rate, primary graft failure rate, and long-term endothelial survival, according to one surgeon.
Enhancement after phakic IOL implantation using PRK or LASIK
February 15th 2008Phakic IOL implantation has advantages as a method of refractive surgery. Enhancement may be needed to optimize the refractive result, but many issues should be considered before undertaking an enhancement and when offering this technology to potential candidates.
LASIK outcomes are optimized thanks to advances in technique and technology
February 15th 2008LASIK in 2007 represents a wonderful world that can provide excellent efficacy, safety, and stability. Multiple innovations are the foundation for today's improved outcomes, and the outlook is bright for future advances.
Pivotal trial results for vernal conjunctivitis drug released
February 15th 2008Results of a pivotal phase III trial of a cyclosporine A product for the treatment of vernal conjunctivitis (VKC) in children showed that the drug improved symptoms and signs of the orphan disease, and tolerability was excellent, according to the manufacturer.
Olopatadine beneficial for perennial allergic conjunctivitis
February 15th 2008A pooled analysis of three randomized, double-masked, placebo-controlled, conjunctival allergen challenge trials demonstrates that once-daily treatment with olopatadine 0.2% (Pataday, Alcon Laboratories) is equally effective for improving ocular itching caused by exposure to indoor or outdoor allergens.
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.