Blue-blocking IOL can hinder scotopic vision, expert says
October 15th 2004IOLs that block blue light, such as the AcrySof Natural IOL (Alcon Laboratories), trade scotopic visual performance for limited protection against acute UV-blue retinal phototoxicity, and they are a particularly poor choice for individuals whose scotopic vision is impaired because of conditions such as age-related macular degeneration (AMD) and diabetic retinopathy, according to Martin A. Mainster, PhD, MD, FRCOphth.
Aberration-free IOL offers superior optical performance
October 15th 2004San Diego-A laboratory comparison of the theoretical optical performance of three different IOLs conducted under similar intraocular conditions indicated that the aberration-free IOL (L161AO, Bausch & Lomb) was superior to the conventional IOL (L161U, Bausch & Lomb) in optical performance under all conditions. It was superior to the modified prolate aspheric IOL (Tecnis Z9000, Advanced Medical Optics) in various degrees of decentration, and it maintained optical performance in various simulated clinical conditions.
Post RK good indication for bimanual microincision phaco
October 15th 2004Almost all cases of phacoemulsification can be performed by means of a bimanual microincision approach. The major advantage ofbimanual microincisions has been an improvement in control over most of the steps involved in endocapsular surgery. The anterior chamber is more stable during capsulorhexis construction, hydrodelineation and hydrodissection can be performed more efficiently, and separation of irrigation from aspiration allows for improved followability by avoiding competing currents at the tip of the phaco needle.
Swiss researcher developed magnet to remove foreign bodies
October 15th 2004Magnets have led travelers and explorers safely home and have spared ship's captains from the ocean depths. Today, they play a major role in medicine in the analysis of ourinternal organs by the use of magnetic resonance imaging (MRI).
MfERG, mfVEP helps in neuro-ophthalmology
October 15th 2004New York-Multifocal electroretinograms (mfERGs) and multifocal visual evoked potentials (mfVEPs) are relatively new techniques that are starting to be used in a clinical setting. Jeffrey G. Odel, MD, discussed the usefulness of these diagnostic tests in patients with neuro-ophthalmic pathology.
Differential diagnosis key to treatment of pale optic nerve
October 15th 2004Buffalo, NY-In the absence of optic nerve swelling, the clinician may be faced with a difficult diagnosis in a patient with a pale optic nerve, according to Norah S. Lincoff-Cohen, MD. A comprehensive differential diagnosis needs to be made to rule out disorders that may require immediate treatment.
Subconjunctival fibrosis one cause of failed glaucoma filter
October 15th 2004New York -Five potential causes of failure of glaucoma filtration surgery include excessive subconjunctival fibrosis, tight scleral flap sutures, encapsulated bleb, occluded internal ostium, and intraocular obstruction, according to James C. Tsai, MD.
What does the future hold for AMD management?
October 15th 2004Therapies for the management of age-related macular degeneration (AMD) have progressed rapidly in recent years. Ophthalmology Times convened a panel of cutting-edge retinal specialists from across the United States to discuss the latest in the diagnosis of AMD and to explore current practice patterns with pharmaceutical and surgical treatment options.
Omega-3 fatty acids reduce risk of neovascular AMD
October 1st 2004Bethesda, MD-Baseline data from the Age-Related Eye Disease Study (AREDS) have shown a protective effect for fish consumption in patients with age-related macular degeneration (AMD), said Emily Y. Chew, MD. Furthermore, 5 years of additional follow-up have yielded new data on mortality.
Quality of life evaluated for patients with AMD
October 1st 2004Nashville-Although outcomes data from the Submacular Surgery Trials are not yet available, quality-of-life information from the study will help investigators evaluate the effectiveness of various treatment options for age-related macular degeneration (AMD), said Paul Sternberg Jr., MD.
RTA takes retinal imaging to new level of interactivity
October 1st 2004New York-The 3-D Anatomy Imager software, the latest modular feature associated with the Retinal Thickness Analyzer (RTA) ophthalmic imaging system (Talia Technology), offers a new level of interactivity in retinal imaging, according to Richard B. Rosen, MD, FACS.
CK improves near vision in post-LASIK patients
October 1st 2004San Diego-An off-label use of conductive keratoplasty (CK) is treatment of presbyopia in patients who had undergone a previous LASIK procedure. Stephen Pascucci, MD, demonstrated that CK improves near vision in these patients and has little effect on the uncorrected binocular distance visual acuity. Patient counseling is mandatory to prepare them for 3 to 4 months of blurry distance vision.
Radial scleral ablation trial promising for presbyopia
October 1st 2004San Diego-Scleral ablation with the 2.94 erbium:YAG laser for the treatment of presbyopia seems to be an effective and safe procedure in most patients, according to Bobby Maddox, MD, here at the American Society of Cataract and Refractive Surgery annual meeting.
LASIK now an option for anisometropic amblyopia
October 1st 2004San Diego-LASIK using the Allegretto Wave Laser (WaveLight Laser Technologie AG) can be effective to treat anisometropic amblyopia in the absence of any other appropriate treatments. Well-centered ablations can be achieved even in patients with poor fixation because of the eye tracker.
Implant shows success in treating posterior uveitis
October 1st 2004Durham, NC-Results of a 9-month randomized, dose-masked, multicenter clinical trial of a fluocinolone acetonide sustained drug delivery system to treat posterior uveitis resulted in significant gains for the eyes that received implants when compared with fellow eyes that did not receive implants, said Glenn J. Jaffe, MD.
Academy offers new concepts, connections to attendees
October 1st 2004The breadth of offerings at the American Academy of Ophthalmology (AAO) Resource Center and Technology Pavilion at the first joint meeting with the European Society of Ophthalmology (SOE) is extraordinary. Physicians can try the demo for the Basic and Clinical Science Course on CD-ROM, flip through the latest patient education products, get help with critical business issues such as coding, and learn the ins and outs of acquiring and installing an electronic medical records system.