CCT may affect results of IOP measurement
January 15th 2007Las Vegas-A study evaluating IOP measurement performed with Goldmann applanation tonometry (GAT), the digital handheld Tono-Pen XL applanation tonometer (Medtronic Ophthalmics), the Pascal Dynamic Contour Tonometer (PDCT, SMT Swiss Microtechnology AG), and the Ocular Response Analyzer (ORA, Reichert Inc.) indicates that the results obtained with all of those devices may be affected by central corneal thickness (CCT). IOP measurements using the PDCT and ORA, however, appear to be influenced the least, reported Maged Nessim, MD, and coauthors here at the annual meeting of the American Academy of Ophthalmology.
Preserved medications may have detrimental effects in glaucoma patients with concurrent OSD
January 15th 2007Ocular surface disease (OSD) in patients with glaucoma is surprisingly common, yet it remains an under-recognized condition by eye-care specialists. Among patients with severe OSD, approximately two-thirds concurrently are afflicted with glaucoma (range, 42.9% to 88.4%).1 OSD encompasses a myriad of ocular conditions, including keratoconjunctivitis sicca.
Pioneer of ophthalmic plastic surgery followed his calling
January 15th 2007Editor's Note: During the time I was a resident at Manhattan Eye, Ear and Throat Hospital (1969-1972), I had the good fortune to work with Byron Capleese Smith, MD. Those who knew him will never forget him, and those who were not able to know him will gain a small glimpse of his persona and his contributions, as written by Christopher Teng, MD. -Norman Medow, MD
Conjunctival PAM uncommon but important disease
January 15th 2007Las Vegas-Primary acquired melanosis (PAM) of the conjunctiva is an uncommon but important disease. Although some studies have suggested that it occurs in as much as one-third of the population, most cases do not need treatment. The disease is potentially malignant, however, and arguments can be made for early treatment if risk factors are present, said Jerry A. Shields, MD, in his delivery of the Lorenz E. Zimmerman Lecture here at a combined meeting of the American Academy of Ophthalmology and the American Association of Ocular Pathologists.
Glaucoma risk prediction model helps in managing ocular hypertension
January 15th 2007Las Vegas-A new, validated glaucoma risk estimator developed using data from two large, prospective clinical trials provides a foundation for guiding a reasonable approach to the management of patients with ocular hypertension, said Mich?l A. Kass, MD, in his delivery of the 27th Robert N. Shaffer Lecture at the annual meeting of the American Academy of Ophthalmology.
QLT, Wilmer Eye Institute sign R&D agreement
January 10th 2007Vancouver, British Columbia-QLT Inc. has entered into a 2-year research collaboration and option agreement with investigators at The Wilmer Eye Institute at Johns Hopkins University, Baltimore, to study and develop potential treatments for dry age-related macular degeneration (AMD).
FDA issues approvable letter for Allergan's Combigan
January 10th 2007Washington, DC-The FDA has issued an approvable letter for brimonidine tartrate/timolol maleate ophthalmic solution (Combigan, Allergan Inc.), outlining the remaining conditions that the company must meet to obtain final marketing approval from the agency.
Minimize the risk of internal theft
January 1st 2007The chances are significantly-perhaps surprisingly-better than even that the typical eye-care practice will fall victim to internal theft. That being the case, practice managers need to know how to identify internal theft and how to prevent it from happening in their practices.
Study: quarterly dosing of ranibizumab may not be as effective as monthly dosing
January 1st 2007Las Vegas-Patients with subfoveal cho-roidal neovascularization (CNV) who received monthly injections of ranibizumab (Lucentis, Genentech) for 3 months and quarterly thereafter fared better than those patients receiving sham treatment in the PIER study. Vision in patients receiving the quarterly injections in this trial was not as good as that in patients who received monthly doses of ranibizumab for the duration of the MARINA and ANCHOR studies, however, reported Peter K. Kaiser, MD.
AREDS results show sustained treatment benefit for AMD
January 1st 2007Las Vegas-The long-term results of the multicenter Age-Related Eye Disease Study (AREDS) indicated that the beneficial effect of treatment with antioxidants and zinc with copper persisted 10 years after the AREDS 1 trial ended in patients who were at higher risk of progression to advanced age-related macular degeneration (AMD), Emily Y. Chew, MD, reported during the retina subspecialty day at the American Academy of Ophthalmology annual meeting.
Classification system aimed at various corneal refractive surgery complications
January 1st 2007Jacksonville, FL-The 5S Classification System, developed by Arun C. Gulani, MD, is an approach to classifying various corneal refractive surgery complications. Clinicians can use it to describe the cornea based on appearance rather than by previously used technologies, said Dr. Gulani, founding director of Gulani Vision Institute, Jacksonville, FL.
CK may be useful for pseudophakic astigmatism
January 1st 2007London-Conductive keratoplasty (CK, Refractec), an effective treatment for the correction of hyperopia or presbyopia, might be a useful procedure for cataract patients with residual astigmatism, according to Tejas D. Shah, MD, who spoke at the XXIV Congress of the European Society of Cataract and Refractive Surgeons.
Thin-flap LASIK safe and predictable, study finds
January 1st 2007Muscat, Sultanate of Oman-The Carriazo-Pendular microkeratome (Schwind eye-tech-solutions) has been shown to be safe and to produce flaps of predictable thickness with two different cutting head sizes and two different suction ring sizes in a large, multicenter European study.
Flap creation can affect visual acuity, recovery
January 1st 2007London-In a comparison of visual outcomes with the femtosecond laser and mechanical microkeratomes following LASIK, both were very effective at targeting emmetropia. Eyes treated with the femtosecond laser, however, had faster visual recovery and better uncorrected visual acuity (UCVA) results at 3 months despite experiencing more transient symptoms immediately after surgery, reported Capt. Steve Schallhorn, MD, here at the XXIV Congress of the European Society of Cataract and Refractive Surgeons.
Outcomes excellent with femtosecond, mechanical device
January 1st 2007London-One-year data from an eye-to-eye comparison study of the IntraLase femtosecond laser (IntraLase Corp.) versus the Hansatome mechanical microkeratome (Bausch & Lomb) in myopic LASIK with the VISX Custom-Vue platform (Advanced Medical Optics/VISX) showed that refractive outcomes in both of the groups were excellent and identical despite clinically and statistically significant differences favoring the femtosecond laser earlier in the study.