Ophthalmic innovations abound at AAO exhibits in Orlando
October 1st 2002All eyes are focused on Orlando for this year's meeting of the American Academy of Ophthalmology (AAO), Oct. 20 to 23. More than 500 exhibitors will showcase the latest ophthalmic technology in Halls A and B (Level 2) of the Orange County Convention Center.
Sleep apnea may be a possible glaucoma risk factor
October 1st 2002Augusta, GA-Findings from a variety of studies point to a link between sleep apnea and glaucoma, but carefully designed clinical trials are warranted, said Parag A. Gokhale, MD, assistant professor of ophthalmology, Medical College of Georgia, Augusta.
Price cutting is detrimental in managed-care contracts
October 1st 2002Price wars are a no-win game for physicians contracting "for market share" with HMOs, IPAs, PPOs, and other managed-care organizations. That is because price is the easiest form of competition to beat. There is always someone around willing to treat the patients for a little bit less.
Dual-optic IOL design may be answer for near vision
October 1st 2002San Francisco-A new type of accommodating IOL has been designed to fill the capsular bag and respond to ciliary body contraction and zonular relaxation, providing near vision. It also has been shown to be implantable through clear corneal wounds in cadaver eyes.
Transplantation of RPE cell line allows vision preservation
October 1st 2002Salt Lake City-Researchers working with an animal model of retinal degenerative disease have demonstrated that a human-derived, extended-life retinal pigment epithelial (RPE) cell line can be successfully transplanted and that such treatment results in durable vision preservation.
Laser ablation responsible for high increase in aberrations
October 1st 2002Rochester, NY-Higher-order aberrations increase slightly after cutting a corneal flap with a microkeratome, there is minimal systematic change in the various modes of aberration with the exception of trefoil, and a slight hyperopic shift also occurs. However, after laser ablation there is a 40% to 60% increase in positive spherical aberration, according to Scott MacRae, MD.
Surgical technique influences refractive outcomes, stability
October 1st 2002Mesa, AZ-A study of the refractive performance of two IOL styles, namely, a three-piece acrylic IOL (MA60BM, Alcon, Fort Worth, TX) with polymethylmethacrylate haptics and a new single-piece acrylic IOL (SA60AT, Alcon), showed that both IOLs provided patients with excellent refractive outcomes when the capsulorhexis was constructed in such a way as to be round, centered, and smaller than the optic of the IOL. Implantation of the SA60AT resulted inexceptionally high refractive accuracy, according to Warren E. Hill, MD, a private practitioner in Mesa, AZ.
Intracranial tumors show neuro-ophthalmic manifestations
October 1st 2002The ophthalmologist may be the first medical encounter for a patient with an intracranial tumor. Localization of the lesion is critical, and "where the lesion is" at the diagnosis stage is more important sometimes than "what the lesion is."
Innovative procedure relieves AION, improves vision
October 1st 2002Margate, FL-Two Florida ophthalmologists have successfully tested a new procedure called retinal endovascular surgery (REVS) to treat anterior ischemic optic neuropathy (AION) in which there is poor blood circulation to the optic nerve, by injecting tissue plasminogen activator (t-PA) into the retinal vasculature.
AAO, PAAO joint meeting offers professional resources
October 1st 2002There's nothing else like it in the world. The joint meeting of the American Academy of Ophthalmology and the Pan-American Association of Ophthalmology is the best opportunity for you to meet your colleagues from around the globe and exchange information and skills for the advancement of the profession.
A hope that ophthalmologists'will be wise' with priorities
October 1st 2002In January 2001, I was a guest lecturer at the Cuban Ophthalmological Society meeting. I was amazed to see how eager the surgeons were to learn anything that would help them take better care of their patients. In Cuba, ophthalmologists are paid $25 per month. It is true that all Cubans get a housing and food stipend in addition to their base salary, but the amount is meager compared with U.S. standards.
Commitment to R&D strengthens Allergan product pipeline
October 1st 2002Irvine, CA-When Allergan announced in January that it planned to spin off its optical medical device business into a separate company called Advanced Medical Optics (AMO), David E.I. Pyott, chairman, president, and CEO of Allergan, said the company would evolve into a specialty pharmaceutical company.
Two-piece anterior chamber IOL offers hope for myopia
October 1st 2002New York-An anterior chamber phakic IOL for the treatment of high myopia combats the four major problems facing anterior chamber lenses, according to cataract sur-geon Charles D. Kelman, MD, who described the advantages of his invention.
Phakic toric IOL corrects total refractive error
October 1st 2002Mainz, Germany-A phakic toric IOL is beneficial in correcting myopia and hyperopia as well as regular astigmatism in the range of 2 to 7 D, according to H. Burkhard Dick, MD, one of the investigators who reported on the multicenter clinical trial of the lens.
Developing neuroprotective drugs for glaucoma no easy task
October 1st 2002Neuroprotection is a concept that originated in the CNS community with the development of therapies aimed at preventing or retarding the manifestations of disorders such as Parkinson's and Alzheimer's diseases, stroke, and head trauma. Less than 15 years ago, the ophthalmic community began to discuss this concept as a novel way to preserve vision in disorders of the retina.
Laser, PDT, surgery, corticosteroids can treat POHS
October 1st 2002Presumed ocular histoplasmosis syndrome (POHS) is characterized by a classic triad of discrete atrophic choroidal scars in the macula or midperiphery, known as "histo spots"; peripapillary atrophy; and choroidal neovascularization (CNV). It occurs bilaterally in about 60% of patients.
Glare, halos less of a problem with larger treatment zone
October 1st 2002Minneapolis-A recent study indicates that extending the optical and treatment zones may result in fewer complaints about glare and halos from patients who undergo LASIK with the VISX Star S3 laser, according to Richard Lindstrom, MD, clinical professor of ophthalmology, University of Minnesota, Minneapolis.